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Finding the Fourth Proportional to 55,275.60, 76,220.10 and 37,339.48

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Solution

The fourth proportional to 55,275.60, 76,220.10 and 37,339.48 is: 51,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275.60 : 76,220.10 = 37,339.48 : x
  2. Step 2: Convert to fraction form
    55,275.60/76,220.10 = 37,339.48/x
  3. Step 3: Cross multiply
    55,275.60x = 76,220.10 × 37,339.48
  4. Step 4: Simplify right side
    55,275.60x = 2,846,018,899.55
  5. Step 5: Solve for x
    x = 2,846,018,899.55/55,275.60
  6. Step 6: Final answer
    x = 51,487.80

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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.