Home / 70,927.11-97,888.28-40,721.90

Finding the Fourth Proportional to 70,927.11, 97,888.28 and 40,721.90

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Solution

The fourth proportional to 70,927.11, 97,888.28 and 40,721.90 is: 56,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,927.11 : 97,888.28 = 40,721.90 : x
  2. Step 2: Convert to fraction form
    70,927.11/97,888.28 = 40,721.90/x
  3. Step 3: Cross multiply
    70,927.11x = 97,888.28 × 40,721.90
  4. Step 4: Simplify right side
    70,927.11x = 3,986,196,056.28
  5. Step 5: Solve for x
    x = 3,986,196,056.28/70,927.11
  6. Step 6: Final answer
    x = 56,201.30

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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.