Home / 67,136.60-100,699.56-39,038.69

Finding the Fourth Proportional to 67,136.60, 100,699.56 and 39,038.69

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Solution

The fourth proportional to 67,136.60, 100,699.56 and 39,038.69 is: 58,554.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,136.60 : 100,699.56 = 39,038.69 : x
  2. Step 2: Convert to fraction form
    67,136.60/100,699.56 = 39,038.69/x
  3. Step 3: Cross multiply
    67,136.60x = 100,699.56 × 39,038.69
  4. Step 4: Simplify right side
    67,136.60x = 3,931,178,402.48
  5. Step 5: Solve for x
    x = 3,931,178,402.48/67,136.60
  6. Step 6: Final answer
    x = 58,554.93

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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.