Home / 74,001.06-111,002.40-21,411

Finding the Fourth Proportional to 74,001.06, 111,002.40 and 21,411

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Solution

The fourth proportional to 74,001.06, 111,002.40 and 21,411 is: 32,116.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,001.06 : 111,002.40 = 21,411 : x
  2. Step 2: Convert to fraction form
    74,001.06/111,002.40 = 21,411/x
  3. Step 3: Cross multiply
    74,001.06x = 111,002.40 × 21,411
  4. Step 4: Simplify right side
    74,001.06x = 2,376,672,386.40
  5. Step 5: Solve for x
    x = 2,376,672,386.40/74,001.06
  6. Step 6: Final answer
    x = 32,116.73

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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.