Home / 70,818.66-97,730.40-38,988.09

Finding the Fourth Proportional to 70,818.66, 97,730.40 and 38,988.09

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Solution

The fourth proportional to 70,818.66, 97,730.40 and 38,988.09 is: 53,803.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,818.66 : 97,730.40 = 38,988.09 : x
  2. Step 2: Convert to fraction form
    70,818.66/97,730.40 = 38,988.09/x
  3. Step 3: Cross multiply
    70,818.66x = 97,730.40 × 38,988.09
  4. Step 4: Simplify right side
    70,818.66x = 3,810,321,630.94
  5. Step 5: Solve for x
    x = 3,810,321,630.94/70,818.66
  6. Step 6: Final answer
    x = 53,803.92

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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.