Home / 74,165.79-102,320.55-54,831.13

Finding the Fourth Proportional to 74,165.79, 102,320.55 and 54,831.13

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Solution

The fourth proportional to 74,165.79, 102,320.55 and 54,831.13 is: 75,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,165.79 : 102,320.55 = 54,831.13 : x
  2. Step 2: Convert to fraction form
    74,165.79/102,320.55 = 54,831.13/x
  3. Step 3: Cross multiply
    74,165.79x = 102,320.55 × 54,831.13
  4. Step 4: Simplify right side
    74,165.79x = 5,610,351,378.72
  5. Step 5: Solve for x
    x = 5,610,351,378.72/74,165.79
  6. Step 6: Final answer
    x = 75,646.08

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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.