Home / 83,486.04-115,222.55-51,665.19

Finding the Fourth Proportional to 83,486.04, 115,222.55 and 51,665.19

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Solution

The fourth proportional to 83,486.04, 115,222.55 and 51,665.19 is: 71,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,486.04 : 115,222.55 = 51,665.19 : x
  2. Step 2: Convert to fraction form
    83,486.04/115,222.55 = 51,665.19/x
  3. Step 3: Cross multiply
    83,486.04x = 115,222.55 × 51,665.19
  4. Step 4: Simplify right side
    83,486.04x = 5,952,994,679.71
  5. Step 5: Solve for x
    x = 5,952,994,679.71/83,486.04
  6. Step 6: Final answer
    x = 71,305.27

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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.