Home / 66,575.20-99,862.80-61,506.40

Finding the Fourth Proportional to 66,575.20, 99,862.80 and 61,506.40

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Solution

The fourth proportional to 66,575.20, 99,862.80 and 61,506.40 is: 92,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,575.20 : 99,862.80 = 61,506.40 : x
  2. Step 2: Convert to fraction form
    66,575.20/99,862.80 = 61,506.40/x
  3. Step 3: Cross multiply
    66,575.20x = 99,862.80 × 61,506.40
  4. Step 4: Simplify right side
    66,575.20x = 6,142,201,321.92
  5. Step 5: Solve for x
    x = 6,142,201,321.92/66,575.20
  6. Step 6: Final answer
    x = 92,259.60

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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.