Home / 56,324.76-77,645.34-42,872.60

Finding the Fourth Proportional to 56,324.76, 77,645.34 and 42,872.60

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Solution

The fourth proportional to 56,324.76, 77,645.34 and 42,872.60 is: 59,101.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,324.76 : 77,645.34 = 42,872.60 : x
  2. Step 2: Convert to fraction form
    56,324.76/77,645.34 = 42,872.60/x
  3. Step 3: Cross multiply
    56,324.76x = 77,645.34 × 42,872.60
  4. Step 4: Simplify right side
    56,324.76x = 3,328,857,215.46
  5. Step 5: Solve for x
    x = 3,328,857,215.46/56,324.76
  6. Step 6: Final answer
    x = 59,101.13

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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.