Home / 56,766.13-78,339.68-31,615.63

Finding the Fourth Proportional to 56,766.13, 78,339.68 and 31,615.63

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Solution

The fourth proportional to 56,766.13, 78,339.68 and 31,615.63 is: 43,630.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,766.13 : 78,339.68 = 31,615.63 : x
  2. Step 2: Convert to fraction form
    56,766.13/78,339.68 = 31,615.63/x
  3. Step 3: Cross multiply
    56,766.13x = 78,339.68 × 31,615.63
  4. Step 4: Simplify right side
    56,766.13x = 2,476,758,337.20
  5. Step 5: Solve for x
    x = 2,476,758,337.20/56,766.13
  6. Step 6: Final answer
    x = 43,630.92

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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.