Home / 86,703.12-130,082.45-36,825.12

Finding the Fourth Proportional to 86,703.12, 130,082.45 and 36,825.12

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Solution

The fourth proportional to 86,703.12, 130,082.45 and 36,825.12 is: 55,249.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.12 : 130,082.45 = 36,825.12 : x
  2. Step 2: Convert to fraction form
    86,703.12/130,082.45 = 36,825.12/x
  3. Step 3: Cross multiply
    86,703.12x = 130,082.45 × 36,825.12
  4. Step 4: Simplify right side
    86,703.12x = 4,790,301,647.02
  5. Step 5: Solve for x
    x = 4,790,301,647.02/86,703.12
  6. Step 6: Final answer
    x = 55,249.47

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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.