Home / 81,326.34-112,226.76-47,335.86

Finding the Fourth Proportional to 81,326.34, 112,226.76 and 47,335.86

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Solution

The fourth proportional to 81,326.34, 112,226.76 and 47,335.86 is: 65,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,326.34 : 112,226.76 = 47,335.86 : x
  2. Step 2: Convert to fraction form
    81,326.34/112,226.76 = 47,335.86/x
  3. Step 3: Cross multiply
    81,326.34x = 112,226.76 × 47,335.86
  4. Step 4: Simplify right side
    81,326.34x = 5,312,350,199.61
  5. Step 5: Solve for x
    x = 5,312,350,199.61/81,326.34
  6. Step 6: Final answer
    x = 65,321.40

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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.