Home / 57,231.48-78,977.25-31,738.89

Finding the Fourth Proportional to 57,231.48, 78,977.25 and 31,738.89

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Solution

The fourth proportional to 57,231.48, 78,977.25 and 31,738.89 is: 43,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,231.48 : 78,977.25 = 31,738.89 : x
  2. Step 2: Convert to fraction form
    57,231.48/78,977.25 = 31,738.89/x
  3. Step 3: Cross multiply
    57,231.48x = 78,977.25 × 31,738.89
  4. Step 4: Simplify right side
    57,231.48x = 2,506,650,250.25
  5. Step 5: Solve for x
    x = 2,506,650,250.25/57,231.48
  6. Step 6: Final answer
    x = 43,798.45

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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.