Home / 83,988.08-115,862.73-53,749.16

Finding the Fourth Proportional to 83,988.08, 115,862.73 and 53,749.16

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Solution

The fourth proportional to 83,988.08, 115,862.73 and 53,749.16 is: 74,147.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,988.08 : 115,862.73 = 53,749.16 : x
  2. Step 2: Convert to fraction form
    83,988.08/115,862.73 = 53,749.16/x
  3. Step 3: Cross multiply
    83,988.08x = 115,862.73 × 53,749.16
  4. Step 4: Simplify right side
    83,988.08x = 6,227,524,412.81
  5. Step 5: Solve for x
    x = 6,227,524,412.81/83,988.08
  6. Step 6: Final answer
    x = 74,147.72

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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.