Home / 55,290.60-76,301.16-31,425.20

Finding the Fourth Proportional to 55,290.60, 76,301.16 and 31,425.20

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Solution

The fourth proportional to 55,290.60, 76,301.16 and 31,425.20 is: 43,366.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,290.60 : 76,301.16 = 31,425.20 : x
  2. Step 2: Convert to fraction form
    55,290.60/76,301.16 = 31,425.20/x
  3. Step 3: Cross multiply
    55,290.60x = 76,301.16 × 31,425.20
  4. Step 4: Simplify right side
    55,290.60x = 2,397,779,213.23
  5. Step 5: Solve for x
    x = 2,397,779,213.23/55,290.60
  6. Step 6: Final answer
    x = 43,366.85

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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.