Home / 93,780.13-140,670.20-28,116.13

Finding the Fourth Proportional to 93,780.13, 140,670.20 and 28,116.13

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Solution

The fourth proportional to 93,780.13, 140,670.20 and 28,116.13 is: 42,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,780.13 : 140,670.20 = 28,116.13 : x
  2. Step 2: Convert to fraction form
    93,780.13/140,670.20 = 28,116.13/x
  3. Step 3: Cross multiply
    93,780.13x = 140,670.20 × 28,116.13
  4. Step 4: Simplify right side
    93,780.13x = 3,955,101,630.33
  5. Step 5: Solve for x
    x = 3,955,101,630.33/93,780.13
  6. Step 6: Final answer
    x = 42,174.20

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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.