Home / 101,581.60-140,182.48-56,869.92

Finding the Fourth Proportional to 101,581.60, 140,182.48 and 56,869.92

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Solution

The fourth proportional to 101,581.60, 140,182.48 and 56,869.92 is: 78,480.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,581.60 : 140,182.48 = 56,869.92 : x
  2. Step 2: Convert to fraction form
    101,581.60/140,182.48 = 56,869.92/x
  3. Step 3: Cross multiply
    101,581.60x = 140,182.48 × 56,869.92
  4. Step 4: Simplify right side
    101,581.60x = 7,972,166,423.00
  5. Step 5: Solve for x
    x = 7,972,166,423.00/101,581.60
  6. Step 6: Final answer
    x = 78,480.42

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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.