Home / 42,120.71-58,126.71-23,000.66

Finding the Fourth Proportional to 42,120.71, 58,126.71 and 23,000.66

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Solution

The fourth proportional to 42,120.71, 58,126.71 and 23,000.66 is: 31,740.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.71 : 58,126.71 = 23,000.66 : x
  2. Step 2: Convert to fraction form
    42,120.71/58,126.71 = 23,000.66/x
  3. Step 3: Cross multiply
    42,120.71x = 58,126.71 × 23,000.66
  4. Step 4: Simplify right side
    42,120.71x = 1,336,952,707.22
  5. Step 5: Solve for x
    x = 1,336,952,707.22/42,120.71
  6. Step 6: Final answer
    x = 31,740.98

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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.