Home / 53,622.20-74,005-30,966.70

Finding the Fourth Proportional to 53,622.20, 74,005 and 30,966.70

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Solution

The fourth proportional to 53,622.20, 74,005 and 30,966.70 is: 42,737.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,622.20 : 74,005 = 30,966.70 : x
  2. Step 2: Convert to fraction form
    53,622.20/74,005 = 30,966.70/x
  3. Step 3: Cross multiply
    53,622.20x = 74,005 × 30,966.70
  4. Step 4: Simplify right side
    53,622.20x = 2,291,690,633.50
  5. Step 5: Solve for x
    x = 2,291,690,633.50/53,622.20
  6. Step 6: Final answer
    x = 42,737.72

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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.