Home / 70,377.40-97,119.81-40,172.29

Finding the Fourth Proportional to 70,377.40, 97,119.81 and 40,172.29

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Solution

The fourth proportional to 70,377.40, 97,119.81 and 40,172.29 is: 55,437.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,377.40 : 97,119.81 = 40,172.29 : x
  2. Step 2: Convert to fraction form
    70,377.40/97,119.81 = 40,172.29/x
  3. Step 3: Cross multiply
    70,377.40x = 97,119.81 × 40,172.29
  4. Step 4: Simplify right side
    70,377.40x = 3,901,525,172.06
  5. Step 5: Solve for x
    x = 3,901,525,172.06/70,377.40
  6. Step 6: Final answer
    x = 55,437.19

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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.