Home / 55,535.52-76,640.28-30,385.08

Finding the Fourth Proportional to 55,535.52, 76,640.28 and 30,385.08

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Solution

The fourth proportional to 55,535.52, 76,640.28 and 30,385.08 is: 41,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,535.52 : 76,640.28 = 30,385.08 : x
  2. Step 2: Convert to fraction form
    55,535.52/76,640.28 = 30,385.08/x
  3. Step 3: Cross multiply
    55,535.52x = 76,640.28 × 30,385.08
  4. Step 4: Simplify right side
    55,535.52x = 2,328,721,039.02
  5. Step 5: Solve for x
    x = 2,328,721,039.02/55,535.52
  6. Step 6: Final answer
    x = 41,932.10

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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.