Home / 70,943.10-97,907.31-39,115.02

Finding the Fourth Proportional to 70,943.10, 97,907.31 and 39,115.02

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Solution

The fourth proportional to 70,943.10, 97,907.31 and 39,115.02 is: 53,981.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,943.10 : 97,907.31 = 39,115.02 : x
  2. Step 2: Convert to fraction form
    70,943.10/97,907.31 = 39,115.02/x
  3. Step 3: Cross multiply
    70,943.10x = 97,907.31 × 39,115.02
  4. Step 4: Simplify right side
    70,943.10x = 3,829,646,388.80
  5. Step 5: Solve for x
    x = 3,829,646,388.80/70,943.10
  6. Step 6: Final answer
    x = 53,981.94

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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.