Home / 83,154.24-114,751.80-45,428.40

Finding the Fourth Proportional to 83,154.24, 114,751.80 and 45,428.40

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Solution

The fourth proportional to 83,154.24, 114,751.80 and 45,428.40 is: 62,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,154.24 : 114,751.80 = 45,428.40 : x
  2. Step 2: Convert to fraction form
    83,154.24/114,751.80 = 45,428.40/x
  3. Step 3: Cross multiply
    83,154.24x = 114,751.80 × 45,428.40
  4. Step 4: Simplify right side
    83,154.24x = 5,212,990,671.12
  5. Step 5: Solve for x
    x = 5,212,990,671.12/83,154.24
  6. Step 6: Final answer
    x = 62,690.62

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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.