Home / 42,138.95-63,187.10-14,049.16

Finding the Fourth Proportional to 42,138.95, 63,187.10 and 14,049.16

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Solution

The fourth proportional to 42,138.95, 63,187.10 and 14,049.16 is: 21,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,138.95 : 63,187.10 = 14,049.16 : x
  2. Step 2: Convert to fraction form
    42,138.95/63,187.10 = 14,049.16/x
  3. Step 3: Cross multiply
    42,138.95x = 63,187.10 × 14,049.16
  4. Step 4: Simplify right side
    42,138.95x = 887,725,502.31
  5. Step 5: Solve for x
    x = 887,725,502.31/42,138.95
  6. Step 6: Final answer
    x = 21,066.63

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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.