Home / 86,756.31-130,045.82-49,237.11

Finding the Fourth Proportional to 86,756.31, 130,045.82 and 49,237.11

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Solution

The fourth proportional to 86,756.31, 130,045.82 and 49,237.11 is: 73,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,756.31 : 130,045.82 = 49,237.11 : x
  2. Step 2: Convert to fraction form
    86,756.31/130,045.82 = 49,237.11/x
  3. Step 3: Cross multiply
    86,756.31x = 130,045.82 × 49,237.11
  4. Step 4: Simplify right side
    86,756.31x = 6,403,080,098.19
  5. Step 5: Solve for x
    x = 6,403,080,098.19/86,756.31
  6. Step 6: Final answer
    x = 73,805.35

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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.