Home / 56,111.20-77,761.08-55,046.72

Finding the Fourth Proportional to 56,111.20, 77,761.08 and 55,046.72

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Solution

The fourth proportional to 56,111.20, 77,761.08 and 55,046.72 is: 76,285.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,111.20 : 77,761.08 = 55,046.72 : x
  2. Step 2: Convert to fraction form
    56,111.20/77,761.08 = 55,046.72/x
  3. Step 3: Cross multiply
    56,111.20x = 77,761.08 × 55,046.72
  4. Step 4: Simplify right side
    56,111.20x = 4,280,492,592.06
  5. Step 5: Solve for x
    x = 4,280,492,592.06/56,111.20
  6. Step 6: Final answer
    x = 76,285.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.