Home / 55,917.50-77,166.15-30,766.46

Finding the Fourth Proportional to 55,917.50, 77,166.15 and 30,766.46

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Solution

The fourth proportional to 55,917.50, 77,166.15 and 30,766.46 is: 42,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,917.50 : 77,166.15 = 30,766.46 : x
  2. Step 2: Convert to fraction form
    55,917.50/77,166.15 = 30,766.46/x
  3. Step 3: Cross multiply
    55,917.50x = 77,166.15 × 30,766.46
  4. Step 4: Simplify right side
    55,917.50x = 2,374,129,267.33
  5. Step 5: Solve for x
    x = 2,374,129,267.33/55,917.50
  6. Step 6: Final answer
    x = 42,457.71

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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.