Home / 97,878.28-146,839.29-31,322.40

Finding the Fourth Proportional to 97,878.28, 146,839.29 and 31,322.40

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Solution

The fourth proportional to 97,878.28, 146,839.29 and 31,322.40 is: 46,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,878.28 : 146,839.29 = 31,322.40 : x
  2. Step 2: Convert to fraction form
    97,878.28/146,839.29 = 31,322.40/x
  3. Step 3: Cross multiply
    97,878.28x = 146,839.29 × 31,322.40
  4. Step 4: Simplify right side
    97,878.28x = 4,599,358,977.10
  5. Step 5: Solve for x
    x = 4,599,358,977.10/97,878.28
  6. Step 6: Final answer
    x = 46,990.60

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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.