Home / 55,948.92-77,211.39-30,456.21

Finding the Fourth Proportional to 55,948.92, 77,211.39 and 30,456.21

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Solution

The fourth proportional to 55,948.92, 77,211.39 and 30,456.21 is: 42,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,948.92 : 77,211.39 = 30,456.21 : x
  2. Step 2: Convert to fraction form
    55,948.92/77,211.39 = 30,456.21/x
  3. Step 3: Cross multiply
    55,948.92x = 77,211.39 × 30,456.21
  4. Step 4: Simplify right side
    55,948.92x = 2,351,566,711.99
  5. Step 5: Solve for x
    x = 2,351,566,711.99/55,948.92
  6. Step 6: Final answer
    x = 42,030.60

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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.