Home / 72,423,136.60-108,634,704.90-34,159,384.60

Finding the Fourth Proportional to 72,423,136.60, 108,634,704.90 and 34,159,384.60

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Solution

The fourth proportional to 72,423,136.60, 108,634,704.90 and 34,159,384.60 is: 51,239,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,423,136.60 : 108,634,704.90 = 34,159,384.60 : x
  2. Step 2: Convert to fraction form
    72,423,136.60/108,634,704.90 = 34,159,384.60/x
  3. Step 3: Cross multiply
    72,423,136.60x = 108,634,704.90 × 34,159,384.60
  4. Step 4: Simplify right side
    72,423,136.60x = 3,710,894,665,586,605
  5. Step 5: Solve for x
    x = 3,710,894,665,586,605/72,423,136.60
  6. Step 6: Final answer
    x = 51,239,076.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.