Home / 55,972.41-77,242.19-30,478.65

Finding the Fourth Proportional to 55,972.41, 77,242.19 and 30,478.65

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Solution

The fourth proportional to 55,972.41, 77,242.19 and 30,478.65 is: 42,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,972.41 : 77,242.19 = 30,478.65 : x
  2. Step 2: Convert to fraction form
    55,972.41/77,242.19 = 30,478.65/x
  3. Step 3: Cross multiply
    55,972.41x = 77,242.19 × 30,478.65
  4. Step 4: Simplify right side
    55,972.41x = 2,354,237,521.85
  5. Step 5: Solve for x
    x = 2,354,237,521.85/55,972.41
  6. Step 6: Final answer
    x = 42,060.68

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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.