Home / 78,177.17-107,884.58-42,367.18

Finding the Fourth Proportional to 78,177.17, 107,884.58 and 42,367.18

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Solution

The fourth proportional to 78,177.17, 107,884.58 and 42,367.18 is: 58,466.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,177.17 : 107,884.58 = 42,367.18 : x
  2. Step 2: Convert to fraction form
    78,177.17/107,884.58 = 42,367.18/x
  3. Step 3: Cross multiply
    78,177.17x = 107,884.58 × 42,367.18
  4. Step 4: Simplify right side
    78,177.17x = 4,570,765,420.08
  5. Step 5: Solve for x
    x = 4,570,765,420.08/78,177.17
  6. Step 6: Final answer
    x = 58,466.75

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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.