Home / 56,765.52-78,338.16-31,270.50

Finding the Fourth Proportional to 56,765.52, 78,338.16 and 31,270.50

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Solution

The fourth proportional to 56,765.52, 78,338.16 and 31,270.50 is: 43,154.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,765.52 : 78,338.16 = 31,270.50 : x
  2. Step 2: Convert to fraction form
    56,765.52/78,338.16 = 31,270.50/x
  3. Step 3: Cross multiply
    56,765.52x = 78,338.16 × 31,270.50
  4. Step 4: Simplify right side
    56,765.52x = 2,449,673,432.28
  5. Step 5: Solve for x
    x = 2,449,673,432.28/56,765.52
  6. Step 6: Final answer
    x = 43,154.25

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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.