Home / 74,613.64-111,966.54-30,240.76

Finding the Fourth Proportional to 74,613.64, 111,966.54 and 30,240.76

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Solution

The fourth proportional to 74,613.64, 111,966.54 and 30,240.76 is: 45,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,613.64 : 111,966.54 = 30,240.76 : x
  2. Step 2: Convert to fraction form
    74,613.64/111,966.54 = 30,240.76/x
  3. Step 3: Cross multiply
    74,613.64x = 111,966.54 × 30,240.76
  4. Step 4: Simplify right side
    74,613.64x = 3,385,953,264.17
  5. Step 5: Solve for x
    x = 3,385,953,264.17/74,613.64
  6. Step 6: Final answer
    x = 45,379.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.