Home / 90,567.04-135,851.05-53,100.86

Finding the Fourth Proportional to 90,567.04, 135,851.05 and 53,100.86

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Solution

The fourth proportional to 90,567.04, 135,851.05 and 53,100.86 is: 79,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,567.04 : 135,851.05 = 53,100.86 : x
  2. Step 2: Convert to fraction form
    90,567.04/135,851.05 = 53,100.86/x
  3. Step 3: Cross multiply
    90,567.04x = 135,851.05 × 53,100.86
  4. Step 4: Simplify right side
    90,567.04x = 7,213,807,586.90
  5. Step 5: Solve for x
    x = 7,213,807,586.90/90,567.04
  6. Step 6: Final answer
    x = 79,651.58

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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.