Home / 74,152.38-102,320.46-42,319.38

Finding the Fourth Proportional to 74,152.38, 102,320.46 and 42,319.38

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Solution

The fourth proportional to 74,152.38, 102,320.46 and 42,319.38 is: 58,395.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,152.38 : 102,320.46 = 42,319.38 : x
  2. Step 2: Convert to fraction form
    74,152.38/102,320.46 = 42,319.38/x
  3. Step 3: Cross multiply
    74,152.38x = 102,320.46 × 42,319.38
  4. Step 4: Simplify right side
    74,152.38x = 4,330,138,428.51
  5. Step 5: Solve for x
    x = 4,330,138,428.51/74,152.38
  6. Step 6: Final answer
    x = 58,395.14

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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.