Home / 103,066.44-154,621.71-31,987.53

Finding the Fourth Proportional to 103,066.44, 154,621.71 and 31,987.53

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Solution

The fourth proportional to 103,066.44, 154,621.71 and 31,987.53 is: 47,988.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,066.44 : 154,621.71 = 31,987.53 : x
  2. Step 2: Convert to fraction form
    103,066.44/154,621.71 = 31,987.53/x
  3. Step 3: Cross multiply
    103,066.44x = 154,621.71 × 31,987.53
  4. Step 4: Simplify right side
    103,066.44x = 4,945,966,587.28
  5. Step 5: Solve for x
    x = 4,945,966,587.28/103,066.44
  6. Step 6: Final answer
    x = 47,988.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.