Home / 56,729.29-78,285.77-31,235.12

Finding the Fourth Proportional to 56,729.29, 78,285.77 and 31,235.12

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Solution

The fourth proportional to 56,729.29, 78,285.77 and 31,235.12 is: 43,104.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,729.29 : 78,285.77 = 31,235.12 : x
  2. Step 2: Convert to fraction form
    56,729.29/78,285.77 = 31,235.12/x
  3. Step 3: Cross multiply
    56,729.29x = 78,285.77 × 31,235.12
  4. Step 4: Simplify right side
    56,729.29x = 2,445,265,498.33
  5. Step 5: Solve for x
    x = 2,445,265,498.33/56,729.29
  6. Step 6: Final answer
    x = 43,104.11

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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.