Home / 86,700.30-130,124.28-34,146.69

Finding the Fourth Proportional to 86,700.30, 130,124.28 and 34,146.69

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Solution

The fourth proportional to 86,700.30, 130,124.28 and 34,146.69 is: 51,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,700.30 : 130,124.28 = 34,146.69 : x
  2. Step 2: Convert to fraction form
    86,700.30/130,124.28 = 34,146.69/x
  3. Step 3: Cross multiply
    86,700.30x = 130,124.28 × 34,146.69
  4. Step 4: Simplify right side
    86,700.30x = 4,443,313,450.63
  5. Step 5: Solve for x
    x = 4,443,313,450.63/86,700.30
  6. Step 6: Final answer
    x = 51,249.11

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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.