Home / 77,514.15-106,981.23-47,317.08

Finding the Fourth Proportional to 77,514.15, 106,981.23 and 47,317.08

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Solution

The fourth proportional to 77,514.15, 106,981.23 and 47,317.08 is: 65,304.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,514.15 : 106,981.23 = 47,317.08 : x
  2. Step 2: Convert to fraction form
    77,514.15/106,981.23 = 47,317.08/x
  3. Step 3: Cross multiply
    77,514.15x = 106,981.23 × 47,317.08
  4. Step 4: Simplify right side
    77,514.15x = 5,062,039,418.41
  5. Step 5: Solve for x
    x = 5,062,039,418.41/77,514.15
  6. Step 6: Final answer
    x = 65,304.71

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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.