Home / 56,600.47-78,110.13-31,107.55

Finding the Fourth Proportional to 56,600.47, 78,110.13 and 31,107.55

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Solution

The fourth proportional to 56,600.47, 78,110.13 and 31,107.55 is: 42,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,600.47 : 78,110.13 = 31,107.55 : x
  2. Step 2: Convert to fraction form
    56,600.47/78,110.13 = 31,107.55/x
  3. Step 3: Cross multiply
    56,600.47x = 78,110.13 × 31,107.55
  4. Step 4: Simplify right side
    56,600.47x = 2,429,814,774.48
  5. Step 5: Solve for x
    x = 2,429,814,774.48/56,600.47
  6. Step 6: Final answer
    x = 42,929.23

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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.