Home / 75,024.72-103,571.71-57,990.47

Finding the Fourth Proportional to 75,024.72, 103,571.71 and 57,990.47

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Solution

The fourth proportional to 75,024.72, 103,571.71 and 57,990.47 is: 80,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,024.72 : 103,571.71 = 57,990.47 : x
  2. Step 2: Convert to fraction form
    75,024.72/103,571.71 = 57,990.47/x
  3. Step 3: Cross multiply
    75,024.72x = 103,571.71 × 57,990.47
  4. Step 4: Simplify right side
    75,024.72x = 6,006,171,478.77
  5. Step 5: Solve for x
    x = 6,006,171,478.77/75,024.72
  6. Step 6: Final answer
    x = 80,055.90

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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.