Home / 70,381.28-97,127.75-40,166.00

Finding the Fourth Proportional to 70,381.28, 97,127.75 and 40,166.00

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Solution

The fourth proportional to 70,381.28, 97,127.75 and 40,166.00 is: 55,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,381.28 : 97,127.75 = 40,166.00 : x
  2. Step 2: Convert to fraction form
    70,381.28/97,127.75 = 40,166.00/x
  3. Step 3: Cross multiply
    70,381.28x = 97,127.75 × 40,166.00
  4. Step 4: Simplify right side
    70,381.28x = 3,901,233,399.11
  5. Step 5: Solve for x
    x = 3,901,233,399.11/70,381.28
  6. Step 6: Final answer
    x = 55,429.98

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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.