Home / 70,818.24-97,729.68-38,987.28

Finding the Fourth Proportional to 70,818.24, 97,729.68 and 38,987.28

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Solution

The fourth proportional to 70,818.24, 97,729.68 and 38,987.28 is: 53,802.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,818.24 : 97,729.68 = 38,987.28 : x
  2. Step 2: Convert to fraction form
    70,818.24/97,729.68 = 38,987.28/x
  3. Step 3: Cross multiply
    70,818.24x = 97,729.68 × 38,987.28
  4. Step 4: Simplify right side
    70,818.24x = 3,810,214,398.47
  5. Step 5: Solve for x
    x = 3,810,214,398.47/70,818.24
  6. Step 6: Final answer
    x = 53,802.73

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1.5x scale

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.