Home / 74,724.40-103,114.52-42,023.70

Finding the Fourth Proportional to 74,724.40, 103,114.52 and 42,023.70

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Solution

The fourth proportional to 74,724.40, 103,114.52 and 42,023.70 is: 57,989.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,724.40 : 103,114.52 = 42,023.70 : x
  2. Step 2: Convert to fraction form
    74,724.40/103,114.52 = 42,023.70/x
  3. Step 3: Cross multiply
    74,724.40x = 103,114.52 × 42,023.70
  4. Step 4: Simplify right side
    74,724.40x = 4,333,253,444.01
  5. Step 5: Solve for x
    x = 4,333,253,444.01/74,724.40
  6. Step 6: Final answer
    x = 57,989.81

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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.