Home / 86,948.70-130,423.05-34,331.10

Finding the Fourth Proportional to 86,948.70, 130,423.05 and 34,331.10

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Solution

The fourth proportional to 86,948.70, 130,423.05 and 34,331.10 is: 51,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,948.70 : 130,423.05 = 34,331.10 : x
  2. Step 2: Convert to fraction form
    86,948.70/130,423.05 = 34,331.10/x
  3. Step 3: Cross multiply
    86,948.70x = 130,423.05 × 34,331.10
  4. Step 4: Simplify right side
    86,948.70x = 4,477,566,771.86
  5. Step 5: Solve for x
    x = 4,477,566,771.86/86,948.70
  6. Step 6: Final answer
    x = 51,496.65

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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.