Home / 66,192.16-91,337.04-39,335.20

Finding the Fourth Proportional to 66,192.16, 91,337.04 and 39,335.20

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Solution

The fourth proportional to 66,192.16, 91,337.04 and 39,335.20 is: 54,277.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,192.16 : 91,337.04 = 39,335.20 : x
  2. Step 2: Convert to fraction form
    66,192.16/91,337.04 = 39,335.20/x
  3. Step 3: Cross multiply
    66,192.16x = 91,337.04 × 39,335.20
  4. Step 4: Simplify right side
    66,192.16x = 3,592,760,735.81
  5. Step 5: Solve for x
    x = 3,592,760,735.81/66,192.16
  6. Step 6: Final answer
    x = 54,277.74

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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.