Home / 48,489.06-66,915.81-28,347.66

Finding the Fourth Proportional to 48,489.06, 66,915.81 and 28,347.66

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Solution

The fourth proportional to 48,489.06, 66,915.81 and 28,347.66 is: 39,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,489.06 : 66,915.81 = 28,347.66 : x
  2. Step 2: Convert to fraction form
    48,489.06/66,915.81 = 28,347.66/x
  3. Step 3: Cross multiply
    48,489.06x = 66,915.81 × 28,347.66
  4. Step 4: Simplify right side
    48,489.06x = 1,896,906,630.50
  5. Step 5: Solve for x
    x = 1,896,906,630.50/48,489.06
  6. Step 6: Final answer
    x = 39,120.30

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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.