Home / 83,718.72-115,562.16-55,433.52

Finding the Fourth Proportional to 83,718.72, 115,562.16 and 55,433.52

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Solution

The fourth proportional to 83,718.72, 115,562.16 and 55,433.52 is: 76,518.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,718.72 : 115,562.16 = 55,433.52 : x
  2. Step 2: Convert to fraction form
    83,718.72/115,562.16 = 55,433.52/x
  3. Step 3: Cross multiply
    83,718.72x = 115,562.16 × 55,433.52
  4. Step 4: Simplify right side
    83,718.72x = 6,406,017,307.60
  5. Step 5: Solve for x
    x = 6,406,017,307.60/83,718.72
  6. Step 6: Final answer
    x = 76,518.34

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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.