Home / 78,263.55-117,370.62-25,660.71

Finding the Fourth Proportional to 78,263.55, 117,370.62 and 25,660.71

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Solution

The fourth proportional to 78,263.55, 117,370.62 and 25,660.71 is: 38,482.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,263.55 : 117,370.62 = 25,660.71 : x
  2. Step 2: Convert to fraction form
    78,263.55/117,370.62 = 25,660.71/x
  3. Step 3: Cross multiply
    78,263.55x = 117,370.62 × 25,660.71
  4. Step 4: Simplify right side
    78,263.55x = 3,011,813,442.34
  5. Step 5: Solve for x
    x = 3,011,813,442.34/78,263.55
  6. Step 6: Final answer
    x = 38,482.96

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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.