Home / 99,530.76-137,352.44-54,818.76

Finding the Fourth Proportional to 99,530.76, 137,352.44 and 54,818.76

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Solution

The fourth proportional to 99,530.76, 137,352.44 and 54,818.76 is: 75,649.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,530.76 : 137,352.44 = 54,818.76 : x
  2. Step 2: Convert to fraction form
    99,530.76/137,352.44 = 54,818.76/x
  3. Step 3: Cross multiply
    99,530.76x = 137,352.44 × 54,818.76
  4. Step 4: Simplify right side
    99,530.76x = 7,529,490,443.77
  5. Step 5: Solve for x
    x = 7,529,490,443.77/99,530.76
  6. Step 6: Final answer
    x = 75,649.88

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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.