Home / 74,159.09-102,346.88-42,332.78

Finding the Fourth Proportional to 74,159.09, 102,346.88 and 42,332.78

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Solution

The fourth proportional to 74,159.09, 102,346.88 and 42,332.78 is: 58,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,159.09 : 102,346.88 = 42,332.78 : x
  2. Step 2: Convert to fraction form
    74,159.09/102,346.88 = 42,332.78/x
  3. Step 3: Cross multiply
    74,159.09x = 102,346.88 × 42,332.78
  4. Step 4: Simplify right side
    74,159.09x = 4,332,627,231.33
  5. Step 5: Solve for x
    x = 4,332,627,231.33/74,159.09
  6. Step 6: Final answer
    x = 58,423.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.