Home / 83,519.16-115,261.16-49,547.76

Finding the Fourth Proportional to 83,519.16, 115,261.16 and 49,547.76

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Solution

The fourth proportional to 83,519.16, 115,261.16 and 49,547.76 is: 68,378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,519.16 : 115,261.16 = 49,547.76 : x
  2. Step 2: Convert to fraction form
    83,519.16/115,261.16 = 49,547.76/x
  3. Step 3: Cross multiply
    83,519.16x = 115,261.16 × 49,547.76
  4. Step 4: Simplify right side
    83,519.16x = 5,710,932,045.26
  5. Step 5: Solve for x
    x = 5,710,932,045.26/83,519.16
  6. Step 6: Final answer
    x = 68,378.71

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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.