Home / 56,478.76-77,943.24-31,328.26

Finding the Fourth Proportional to 56,478.76, 77,943.24 and 31,328.26

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Solution

The fourth proportional to 56,478.76, 77,943.24 and 31,328.26 is: 43,234.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,478.76 : 77,943.24 = 31,328.26 : x
  2. Step 2: Convert to fraction form
    56,478.76/77,943.24 = 31,328.26/x
  3. Step 3: Cross multiply
    56,478.76x = 77,943.24 × 31,328.26
  4. Step 4: Simplify right side
    56,478.76x = 2,441,826,087.96
  5. Step 5: Solve for x
    x = 2,441,826,087.96/56,478.76
  6. Step 6: Final answer
    x = 43,234.41

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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.