Home / 55,865.28-77,091.52-30,714.72

Finding the Fourth Proportional to 55,865.28, 77,091.52 and 30,714.72

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Solution

The fourth proportional to 55,865.28, 77,091.52 and 30,714.72 is: 42,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,865.28 : 77,091.52 = 30,714.72 : x
  2. Step 2: Convert to fraction form
    55,865.28/77,091.52 = 30,714.72/x
  3. Step 3: Cross multiply
    55,865.28x = 77,091.52 × 30,714.72
  4. Step 4: Simplify right side
    55,865.28x = 2,367,844,451.17
  5. Step 5: Solve for x
    x = 2,367,844,451.17/55,865.28
  6. Step 6: Final answer
    x = 42,384.90

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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.