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Finding the Fourth Proportional to 66,373.20, 99,559.80 and 61,304.40

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Solution

The fourth proportional to 66,373.20, 99,559.80 and 61,304.40 is: 91,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,373.20 : 99,559.80 = 61,304.40 : x
  2. Step 2: Convert to fraction form
    66,373.20/99,559.80 = 61,304.40/x
  3. Step 3: Cross multiply
    66,373.20x = 99,559.80 × 61,304.40
  4. Step 4: Simplify right side
    66,373.20x = 6,103,453,803.12
  5. Step 5: Solve for x
    x = 6,103,453,803.12/66,373.20
  6. Step 6: Final answer
    x = 91,956.60

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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.