Home / 56,620.48-78,001.20-39,592.88

Finding the Fourth Proportional to 56,620.48, 78,001.20 and 39,592.88

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Solution

The fourth proportional to 56,620.48, 78,001.20 and 39,592.88 is: 54,543.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,620.48 : 78,001.20 = 39,592.88 : x
  2. Step 2: Convert to fraction form
    56,620.48/78,001.20 = 39,592.88/x
  3. Step 3: Cross multiply
    56,620.48x = 78,001.20 × 39,592.88
  4. Step 4: Simplify right side
    56,620.48x = 3,088,292,151.46
  5. Step 5: Solve for x
    x = 3,088,292,151.46/56,620.48
  6. Step 6: Final answer
    x = 54,543.73

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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.