Home / 70,269.90-96,961.12-40,055.28

Finding the Fourth Proportional to 70,269.90, 96,961.12 and 40,055.28

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Solution

The fourth proportional to 70,269.90, 96,961.12 and 40,055.28 is: 55,269.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,269.90 : 96,961.12 = 40,055.28 : x
  2. Step 2: Convert to fraction form
    70,269.90/96,961.12 = 40,055.28/x
  3. Step 3: Cross multiply
    70,269.90x = 96,961.12 × 40,055.28
  4. Step 4: Simplify right side
    70,269.90x = 3,883,804,810.71
  5. Step 5: Solve for x
    x = 3,883,804,810.71/70,269.90
  6. Step 6: Final answer
    x = 55,269.82

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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.