Home / 86,474.26-129,715.28-26,498.42

Finding the Fourth Proportional to 86,474.26, 129,715.28 and 26,498.42

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Solution

The fourth proportional to 86,474.26, 129,715.28 and 26,498.42 is: 39,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,474.26 : 129,715.28 = 26,498.42 : x
  2. Step 2: Convert to fraction form
    86,474.26/129,715.28 = 26,498.42/x
  3. Step 3: Cross multiply
    86,474.26x = 129,715.28 × 26,498.42
  4. Step 4: Simplify right side
    86,474.26x = 3,437,249,969.86
  5. Step 5: Solve for x
    x = 3,437,249,969.86/86,474.26
  6. Step 6: Final answer
    x = 39,748.82

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1.5x scale

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.