Home / 71,001.06-97,981.47-39,170.04

Finding the Fourth Proportional to 71,001.06, 97,981.47 and 39,170.04

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Solution

The fourth proportional to 71,001.06, 97,981.47 and 39,170.04 is: 54,054.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,001.06 : 97,981.47 = 39,170.04 : x
  2. Step 2: Convert to fraction form
    71,001.06/97,981.47 = 39,170.04/x
  3. Step 3: Cross multiply
    71,001.06x = 97,981.47 × 39,170.04
  4. Step 4: Simplify right side
    71,001.06x = 3,837,938,099.16
  5. Step 5: Solve for x
    x = 3,837,938,099.16/71,001.06
  6. Step 6: Final answer
    x = 54,054.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.