Home / 71,003.63-97,980.17-39,173.06

Finding the Fourth Proportional to 71,003.63, 97,980.17 and 39,173.06

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Solution

The fourth proportional to 71,003.63, 97,980.17 and 39,173.06 is: 54,056.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,003.63 : 97,980.17 = 39,173.06 : x
  2. Step 2: Convert to fraction form
    71,003.63/97,980.17 = 39,173.06/x
  3. Step 3: Cross multiply
    71,003.63x = 97,980.17 × 39,173.06
  4. Step 4: Simplify right side
    71,003.63x = 3,838,183,127.31
  5. Step 5: Solve for x
    x = 3,838,183,127.31/71,003.63
  6. Step 6: Final answer
    x = 54,056.15

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1.5x scale

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.