Home / 80,501.52-111,053.48-56,641.34

Finding the Fourth Proportional to 80,501.52, 111,053.48 and 56,641.34

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Solution

The fourth proportional to 80,501.52, 111,053.48 and 56,641.34 is: 78,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,501.52 : 111,053.48 = 56,641.34 : x
  2. Step 2: Convert to fraction form
    80,501.52/111,053.48 = 56,641.34/x
  3. Step 3: Cross multiply
    80,501.52x = 111,053.48 × 56,641.34
  4. Step 4: Simplify right side
    80,501.52x = 6,290,217,918.86
  5. Step 5: Solve for x
    x = 6,290,217,918.86/80,501.52
  6. Step 6: Final answer
    x = 78,137.88

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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.