Home / 63,681.12-87,853.64-38,534.40

Finding the Fourth Proportional to 63,681.12, 87,853.64 and 38,534.40

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Solution

The fourth proportional to 63,681.12, 87,853.64 and 38,534.40 is: 53,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,681.12 : 87,853.64 = 38,534.40 : x
  2. Step 2: Convert to fraction form
    63,681.12/87,853.64 = 38,534.40/x
  3. Step 3: Cross multiply
    63,681.12x = 87,853.64 × 38,534.40
  4. Step 4: Simplify right side
    63,681.12x = 3,385,387,305.22
  5. Step 5: Solve for x
    x = 3,385,387,305.22/63,681.12
  6. Step 6: Final answer
    x = 53,161.55

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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.