Home / 42,129.08-63,154.56-15,851.24

Finding the Fourth Proportional to 42,129.08, 63,154.56 and 15,851.24

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Solution

The fourth proportional to 42,129.08, 63,154.56 and 15,851.24 is: 23,762.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,129.08 : 63,154.56 = 15,851.24 : x
  2. Step 2: Convert to fraction form
    42,129.08/63,154.56 = 15,851.24/x
  3. Step 3: Cross multiply
    42,129.08x = 63,154.56 × 15,851.24
  4. Step 4: Simplify right side
    42,129.08x = 1,001,078,087.65
  5. Step 5: Solve for x
    x = 1,001,078,087.65/42,129.08
  6. Step 6: Final answer
    x = 23,762.16

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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.