Home / 42,130.76-63,159.12-17,191.81

Finding the Fourth Proportional to 42,130.76, 63,159.12 and 17,191.81

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Solution

The fourth proportional to 42,130.76, 63,159.12 and 17,191.81 is: 25,772.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,130.76 : 63,159.12 = 17,191.81 : x
  2. Step 2: Convert to fraction form
    42,130.76/63,159.12 = 17,191.81/x
  3. Step 3: Cross multiply
    42,130.76x = 63,159.12 × 17,191.81
  4. Step 4: Simplify right side
    42,130.76x = 1,085,819,590.81
  5. Step 5: Solve for x
    x = 1,085,819,590.81/42,130.76
  6. Step 6: Final answer
    x = 25,772.61

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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.