Home / 56,909.25-78,534.81-31,758.75

Finding the Fourth Proportional to 56,909.25, 78,534.81 and 31,758.75

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Solution

The fourth proportional to 56,909.25, 78,534.81 and 31,758.75 is: 43,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,909.25 : 78,534.81 = 31,758.75 : x
  2. Step 2: Convert to fraction form
    56,909.25/78,534.81 = 31,758.75/x
  3. Step 3: Cross multiply
    56,909.25x = 78,534.81 × 31,758.75
  4. Step 4: Simplify right side
    56,909.25x = 2,494,167,397.09
  5. Step 5: Solve for x
    x = 2,494,167,397.09/56,909.25
  6. Step 6: Final answer
    x = 43,827.10

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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.