Home / 43,276.70-64,915.05-28,502.30

Finding the Fourth Proportional to 43,276.70, 64,915.05 and 28,502.30

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Solution

The fourth proportional to 43,276.70, 64,915.05 and 28,502.30 is: 42,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,276.70 : 64,915.05 = 28,502.30 : x
  2. Step 2: Convert to fraction form
    43,276.70/64,915.05 = 28,502.30/x
  3. Step 3: Cross multiply
    43,276.70x = 64,915.05 × 28,502.30
  4. Step 4: Simplify right side
    43,276.70x = 1,850,228,229.62
  5. Step 5: Solve for x
    x = 1,850,228,229.62/43,276.70
  6. Step 6: Final answer
    x = 42,753.45

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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.