Home / 53,778.60-80,862.30-52,612.20

Finding the Fourth Proportional to 53,778.60, 80,862.30 and 52,612.20

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Solution

The fourth proportional to 53,778.60, 80,862.30 and 52,612.20 is: 79,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,778.60 : 80,862.30 = 52,612.20 : x
  2. Step 2: Convert to fraction form
    53,778.60/80,862.30 = 52,612.20/x
  3. Step 3: Cross multiply
    53,778.60x = 80,862.30 × 52,612.20
  4. Step 4: Simplify right side
    53,778.60x = 4,254,343,500.06
  5. Step 5: Solve for x
    x = 4,254,343,500.06/53,778.60
  6. Step 6: Final answer
    x = 79,108.48

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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.