Home / 79,306.40-109,432.73-45,317.07

Finding the Fourth Proportional to 79,306.40, 109,432.73 and 45,317.07

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Solution

The fourth proportional to 79,306.40, 109,432.73 and 45,317.07 is: 62,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,306.40 : 109,432.73 = 45,317.07 : x
  2. Step 2: Convert to fraction form
    79,306.40/109,432.73 = 45,317.07/x
  3. Step 3: Cross multiply
    79,306.40x = 109,432.73 × 45,317.07
  4. Step 4: Simplify right side
    79,306.40x = 4,959,170,459.12
  5. Step 5: Solve for x
    x = 4,959,170,459.12/79,306.40
  6. Step 6: Final answer
    x = 62,531.79

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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.