Home / 78,333.20-108,127.90-46,502.12

Finding the Fourth Proportional to 78,333.20, 108,127.90 and 46,502.12

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Solution

The fourth proportional to 78,333.20, 108,127.90 and 46,502.12 is: 64,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,333.20 : 108,127.90 = 46,502.12 : x
  2. Step 2: Convert to fraction form
    78,333.20/108,127.90 = 46,502.12/x
  3. Step 3: Cross multiply
    78,333.20x = 108,127.90 × 46,502.12
  4. Step 4: Simplify right side
    78,333.20x = 5,028,176,648.02
  5. Step 5: Solve for x
    x = 5,028,176,648.02/78,333.20
  6. Step 6: Final answer
    x = 64,189.60

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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.