Home / 85,126.05-117,470.13-48,801.45

Finding the Fourth Proportional to 85,126.05, 117,470.13 and 48,801.45

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Solution

The fourth proportional to 85,126.05, 117,470.13 and 48,801.45 is: 67,343.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,126.05 : 117,470.13 = 48,801.45 : x
  2. Step 2: Convert to fraction form
    85,126.05/117,470.13 = 48,801.45/x
  3. Step 3: Cross multiply
    85,126.05x = 117,470.13 × 48,801.45
  4. Step 4: Simplify right side
    85,126.05x = 5,732,712,675.69
  5. Step 5: Solve for x
    x = 5,732,712,675.69/85,126.05
  6. Step 6: Final answer
    x = 67,343.81

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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.