Home / 74,013.07-102,135.50-42,192.22

Finding the Fourth Proportional to 74,013.07, 102,135.50 and 42,192.22

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Solution

The fourth proportional to 74,013.07, 102,135.50 and 42,192.22 is: 58,223.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,013.07 : 102,135.50 = 42,192.22 : x
  2. Step 2: Convert to fraction form
    74,013.07/102,135.50 = 42,192.22/x
  3. Step 3: Cross multiply
    74,013.07x = 102,135.50 × 42,192.22
  4. Step 4: Simplify right side
    74,013.07x = 4,309,323,080.61
  5. Step 5: Solve for x
    x = 4,309,323,080.61/74,013.07
  6. Step 6: Final answer
    x = 58,223.82

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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.