Home / 66,275.40-91,445.04-48,380.16

Finding the Fourth Proportional to 66,275.40, 91,445.04 and 48,380.16

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Solution

The fourth proportional to 66,275.40, 91,445.04 and 48,380.16 is: 66,753.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,275.40 : 91,445.04 = 48,380.16 : x
  2. Step 2: Convert to fraction form
    66,275.40/91,445.04 = 48,380.16/x
  3. Step 3: Cross multiply
    66,275.40x = 91,445.04 × 48,380.16
  4. Step 4: Simplify right side
    66,275.40x = 4,424,125,666.41
  5. Step 5: Solve for x
    x = 4,424,125,666.41/66,275.40
  6. Step 6: Final answer
    x = 66,753.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.