Home / 78,522.40-117,744.16-36,366.24

Finding the Fourth Proportional to 78,522.40, 117,744.16 and 36,366.24

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Solution

The fourth proportional to 78,522.40, 117,744.16 and 36,366.24 is: 54,531.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,522.40 : 117,744.16 = 36,366.24 : x
  2. Step 2: Convert to fraction form
    78,522.40/117,744.16 = 36,366.24/x
  3. Step 3: Cross multiply
    78,522.40x = 117,744.16 × 36,366.24
  4. Step 4: Simplify right side
    78,522.40x = 4,281,912,381.16
  5. Step 5: Solve for x
    x = 4,281,912,381.16/78,522.40
  6. Step 6: Final answer
    x = 54,531.09

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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.