Home / 78,044.19-107,700.15-42,233.40

Finding the Fourth Proportional to 78,044.19, 107,700.15 and 42,233.40

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Solution

The fourth proportional to 78,044.19, 107,700.15 and 42,233.40 is: 58,281.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044.19 : 107,700.15 = 42,233.40 : x
  2. Step 2: Convert to fraction form
    78,044.19/107,700.15 = 42,233.40/x
  3. Step 3: Cross multiply
    78,044.19x = 107,700.15 × 42,233.40
  4. Step 4: Simplify right side
    78,044.19x = 4,548,543,515.01
  5. Step 5: Solve for x
    x = 4,548,543,515.01/78,044.19
  6. Step 6: Final answer
    x = 58,281.64

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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.