Home / 78,329.43-108,096.93-42,521.76

Finding the Fourth Proportional to 78,329.43, 108,096.93 and 42,521.76

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Solution

The fourth proportional to 78,329.43, 108,096.93 and 42,521.76 is: 58,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,329.43 : 108,096.93 = 42,521.76 : x
  2. Step 2: Convert to fraction form
    78,329.43/108,096.93 = 42,521.76/x
  3. Step 3: Cross multiply
    78,329.43x = 108,096.93 × 42,521.76
  4. Step 4: Simplify right side
    78,329.43x = 4,596,471,714.20
  5. Step 5: Solve for x
    x = 4,596,471,714.20/78,329.43
  6. Step 6: Final answer
    x = 58,681.29

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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.