Home / 86,290.85-129,442.14-29,341.56

Finding the Fourth Proportional to 86,290.85, 129,442.14 and 29,341.56

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Solution

The fourth proportional to 86,290.85, 129,442.14 and 29,341.56 is: 44,014.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,290.85 : 129,442.14 = 29,341.56 : x
  2. Step 2: Convert to fraction form
    86,290.85/129,442.14 = 29,341.56/x
  3. Step 3: Cross multiply
    86,290.85x = 129,442.14 × 29,341.56
  4. Step 4: Simplify right side
    86,290.85x = 3,798,034,317.34
  5. Step 5: Solve for x
    x = 3,798,034,317.34/86,290.85
  6. Step 6: Final answer
    x = 44,014.33

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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.