Home / 70,742.50-97,638.52-40,548.07

Finding the Fourth Proportional to 70,742.50, 97,638.52 and 40,548.07

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Solution

The fourth proportional to 70,742.50, 97,638.52 and 40,548.07 is: 55,964.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,742.50 : 97,638.52 = 40,548.07 : x
  2. Step 2: Convert to fraction form
    70,742.50/97,638.52 = 40,548.07/x
  3. Step 3: Cross multiply
    70,742.50x = 97,638.52 × 40,548.07
  4. Step 4: Simplify right side
    70,742.50x = 3,959,053,543.66
  5. Step 5: Solve for x
    x = 3,959,053,543.66/70,742.50
  6. Step 6: Final answer
    x = 55,964.29

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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.