Home / 83,788.29-115,628.40-45,547.85

Finding the Fourth Proportional to 83,788.29, 115,628.40 and 45,547.85

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Solution

The fourth proportional to 83,788.29, 115,628.40 and 45,547.85 is: 62,856.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,788.29 : 115,628.40 = 45,547.85 : x
  2. Step 2: Convert to fraction form
    83,788.29/115,628.40 = 45,547.85/x
  3. Step 3: Cross multiply
    83,788.29x = 115,628.40 × 45,547.85
  4. Step 4: Simplify right side
    83,788.29x = 5,266,624,440.80
  5. Step 5: Solve for x
    x = 5,266,624,440.80/83,788.29
  6. Step 6: Final answer
    x = 62,856.33

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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.