Home / 88,609.31-122,211.74-56,781.17

Finding the Fourth Proportional to 88,609.31, 122,211.74 and 56,781.17

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Solution

The fourth proportional to 88,609.31, 122,211.74 and 56,781.17 is: 78,313.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,609.31 : 122,211.74 = 56,781.17 : x
  2. Step 2: Convert to fraction form
    88,609.31/122,211.74 = 56,781.17/x
  3. Step 3: Cross multiply
    88,609.31x = 122,211.74 × 56,781.17
  4. Step 4: Simplify right side
    88,609.31x = 6,939,325,254.73
  5. Step 5: Solve for x
    x = 6,939,325,254.73/88,609.31
  6. Step 6: Final answer
    x = 78,313.73

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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.