Home / 83,457.18-115,167.15-45,730.62

Finding the Fourth Proportional to 83,457.18, 115,167.15 and 45,730.62

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Solution

The fourth proportional to 83,457.18, 115,167.15 and 45,730.62 is: 63,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,457.18 : 115,167.15 = 45,730.62 : x
  2. Step 2: Convert to fraction form
    83,457.18/115,167.15 = 45,730.62/x
  3. Step 3: Cross multiply
    83,457.18x = 115,167.15 × 45,730.62
  4. Step 4: Simplify right side
    83,457.18x = 5,266,665,173.13
  5. Step 5: Solve for x
    x = 5,266,665,173.13/83,457.18
  6. Step 6: Final answer
    x = 63,106.20

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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.