Home / 56,521.76-78,003.68-31,371.24

Finding the Fourth Proportional to 56,521.76, 78,003.68 and 31,371.24

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Solution

The fourth proportional to 56,521.76, 78,003.68 and 31,371.24 is: 43,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,521.76 : 78,003.68 = 31,371.24 : x
  2. Step 2: Convert to fraction form
    56,521.76/78,003.68 = 31,371.24/x
  3. Step 3: Cross multiply
    56,521.76x = 78,003.68 × 31,371.24
  4. Step 4: Simplify right side
    56,521.76x = 2,447,072,166.16
  5. Step 5: Solve for x
    x = 2,447,072,166.16/56,521.76
  6. Step 6: Final answer
    x = 43,294.34

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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.