Home / 86,452.07-129,708.61-30,307.82

Finding the Fourth Proportional to 86,452.07, 129,708.61 and 30,307.82

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Solution

The fourth proportional to 86,452.07, 129,708.61 and 30,307.82 is: 45,472.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,452.07 : 129,708.61 = 30,307.82 : x
  2. Step 2: Convert to fraction form
    86,452.07/129,708.61 = 30,307.82/x
  3. Step 3: Cross multiply
    86,452.07x = 129,708.61 × 30,307.82
  4. Step 4: Simplify right side
    86,452.07x = 3,931,184,480.02
  5. Step 5: Solve for x
    x = 3,931,184,480.02/86,452.07
  6. Step 6: Final answer
    x = 45,472.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.