Home / 86,856.36-130,251.33-47,392.38

Finding the Fourth Proportional to 86,856.36, 130,251.33 and 47,392.38

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Solution

The fourth proportional to 86,856.36, 130,251.33 and 47,392.38 is: 71,070.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,856.36 : 130,251.33 = 47,392.38 : x
  2. Step 2: Convert to fraction form
    86,856.36/130,251.33 = 47,392.38/x
  3. Step 3: Cross multiply
    86,856.36x = 130,251.33 × 47,392.38
  4. Step 4: Simplify right side
    86,856.36x = 6,172,920,526.87
  5. Step 5: Solve for x
    x = 6,172,920,526.87/86,856.36
  6. Step 6: Final answer
    x = 71,070.45

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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.