Home / 56,520.75-78,002.28-31,370.25

Finding the Fourth Proportional to 56,520.75, 78,002.28 and 31,370.25

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Solution

The fourth proportional to 56,520.75, 78,002.28 and 31,370.25 is: 43,292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,520.75 : 78,002.28 = 31,370.25 : x
  2. Step 2: Convert to fraction form
    56,520.75/78,002.28 = 31,370.25/x
  3. Step 3: Cross multiply
    56,520.75x = 78,002.28 × 31,370.25
  4. Step 4: Simplify right side
    56,520.75x = 2,446,951,024.17
  5. Step 5: Solve for x
    x = 2,446,951,024.17/56,520.75
  6. Step 6: Final answer
    x = 43,292.97

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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.