Home / 57,328.48-79,140-38,240.02

Finding the Fourth Proportional to 57,328.48, 79,140 and 38,240.02

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Solution

The fourth proportional to 57,328.48, 79,140 and 38,240.02 is: 52,789.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,328.48 : 79,140 = 38,240.02 : x
  2. Step 2: Convert to fraction form
    57,328.48/79,140 = 38,240.02/x
  3. Step 3: Cross multiply
    57,328.48x = 79,140 × 38,240.02
  4. Step 4: Simplify right side
    57,328.48x = 3,026,315,182.80
  5. Step 5: Solve for x
    x = 3,026,315,182.80/57,328.48
  6. Step 6: Final answer
    x = 52,789.04

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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.