Home / 74,519.23-102,831.12-42,254.50

Finding the Fourth Proportional to 74,519.23, 102,831.12 and 42,254.50

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Solution

The fourth proportional to 74,519.23, 102,831.12 and 42,254.50 is: 58,308.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,519.23 : 102,831.12 = 42,254.50 : x
  2. Step 2: Convert to fraction form
    74,519.23/102,831.12 = 42,254.50/x
  3. Step 3: Cross multiply
    74,519.23x = 102,831.12 × 42,254.50
  4. Step 4: Simplify right side
    74,519.23x = 4,345,077,560.04
  5. Step 5: Solve for x
    x = 4,345,077,560.04/74,519.23
  6. Step 6: Final answer
    x = 58,308.14

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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.