Home / 86,851.08-130,174.56-36,900

Finding the Fourth Proportional to 86,851.08, 130,174.56 and 36,900

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Solution

The fourth proportional to 86,851.08, 130,174.56 and 36,900 is: 55,306.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,851.08 : 130,174.56 = 36,900 : x
  2. Step 2: Convert to fraction form
    86,851.08/130,174.56 = 36,900/x
  3. Step 3: Cross multiply
    86,851.08x = 130,174.56 × 36,900
  4. Step 4: Simplify right side
    86,851.08x = 4,803,441,264
  5. Step 5: Solve for x
    x = 4,803,441,264/86,851.08
  6. Step 6: Final answer
    x = 55,306.64

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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.