Home / 83,491.04-115,229.45-51,670.19

Finding the Fourth Proportional to 83,491.04, 115,229.45 and 51,670.19

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Solution

The fourth proportional to 83,491.04, 115,229.45 and 51,670.19 is: 71,312.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,491.04 : 115,229.45 = 51,670.19 : x
  2. Step 2: Convert to fraction form
    83,491.04/115,229.45 = 51,670.19/x
  3. Step 3: Cross multiply
    83,491.04x = 115,229.45 × 51,670.19
  4. Step 4: Simplify right side
    83,491.04x = 5,953,927,575.10
  5. Step 5: Solve for x
    x = 5,953,927,575.10/83,491.04
  6. Step 6: Final answer
    x = 71,312.17

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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.