Home / 78,278.76-117,437.34-36,677.16

Finding the Fourth Proportional to 78,278.76, 117,437.34 and 36,677.16

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Solution

The fourth proportional to 78,278.76, 117,437.34 and 36,677.16 is: 55,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,278.76 : 117,437.34 = 36,677.16 : x
  2. Step 2: Convert to fraction form
    78,278.76/117,437.34 = 36,677.16/x
  3. Step 3: Cross multiply
    78,278.76x = 117,437.34 × 36,677.16
  4. Step 4: Simplify right side
    78,278.76x = 4,307,268,109.15
  5. Step 5: Solve for x
    x = 4,307,268,109.15/78,278.76
  6. Step 6: Final answer
    x = 55,024.74

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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.