Home / 86,865.72-130,325.03-42,486.02

Finding the Fourth Proportional to 86,865.72, 130,325.03 and 42,486.02

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Solution

The fourth proportional to 86,865.72, 130,325.03 and 42,486.02 is: 63,741.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,865.72 : 130,325.03 = 42,486.02 : x
  2. Step 2: Convert to fraction form
    86,865.72/130,325.03 = 42,486.02/x
  3. Step 3: Cross multiply
    86,865.72x = 130,325.03 × 42,486.02
  4. Step 4: Simplify right side
    86,865.72x = 5,536,991,854.05
  5. Step 5: Solve for x
    x = 5,536,991,854.05/86,865.72
  6. Step 6: Final answer
    x = 63,741.97

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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.