Home / 86,948.42-130,334.40-49,431

Finding the Fourth Proportional to 86,948.42, 130,334.40 and 49,431

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Solution

The fourth proportional to 86,948.42, 130,334.40 and 49,431 is: 74,096.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,948.42 : 130,334.40 = 49,431 : x
  2. Step 2: Convert to fraction form
    86,948.42/130,334.40 = 49,431/x
  3. Step 3: Cross multiply
    86,948.42x = 130,334.40 × 49,431
  4. Step 4: Simplify right side
    86,948.42x = 6,442,559,726.40
  5. Step 5: Solve for x
    x = 6,442,559,726.40/86,948.42
  6. Step 6: Final answer
    x = 74,096.34

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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.