Home / 55,478.61-76,560.17-30,328.11

Finding the Fourth Proportional to 55,478.61, 76,560.17 and 30,328.11

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Solution

The fourth proportional to 55,478.61, 76,560.17 and 30,328.11 is: 41,852.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,478.61 : 76,560.17 = 30,328.11 : x
  2. Step 2: Convert to fraction form
    55,478.61/76,560.17 = 30,328.11/x
  3. Step 3: Cross multiply
    55,478.61x = 76,560.17 × 30,328.11
  4. Step 4: Simplify right side
    55,478.61x = 2,321,925,105.74
  5. Step 5: Solve for x
    x = 2,321,925,105.74/55,478.61
  6. Step 6: Final answer
    x = 41,852.62

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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.