Home / 53,612.72-80,899.20-51,454.88

Finding the Fourth Proportional to 53,612.72, 80,899.20 and 51,454.88

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Solution

The fourth proportional to 53,612.72, 80,899.20 and 51,454.88 is: 77,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,612.72 : 80,899.20 = 51,454.88 : x
  2. Step 2: Convert to fraction form
    53,612.72/80,899.20 = 51,454.88/x
  3. Step 3: Cross multiply
    53,612.72x = 80,899.20 × 51,454.88
  4. Step 4: Simplify right side
    53,612.72x = 4,162,658,628.10
  5. Step 5: Solve for x
    x = 4,162,658,628.10/53,612.72
  6. Step 6: Final answer
    x = 77,643.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.