Home / 98,548.28-147,820.33-31,988.30

Finding the Fourth Proportional to 98,548.28, 147,820.33 and 31,988.30

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Solution

The fourth proportional to 98,548.28, 147,820.33 and 31,988.30 is: 47,981.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,548.28 : 147,820.33 = 31,988.30 : x
  2. Step 2: Convert to fraction form
    98,548.28/147,820.33 = 31,988.30/x
  3. Step 3: Cross multiply
    98,548.28x = 147,820.33 × 31,988.30
  4. Step 4: Simplify right side
    98,548.28x = 4,728,521,062.14
  5. Step 5: Solve for x
    x = 4,728,521,062.14/98,548.28
  6. Step 6: Final answer
    x = 47,981.77

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1.5x scale

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.