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Finding the Fourth Proportional to 53,648.58, 80,472.87 and 20,368.66

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Solution

The fourth proportional to 53,648.58, 80,472.87 and 20,368.66 is: 30,552.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,648.58 : 80,472.87 = 20,368.66 : x
  2. Step 2: Convert to fraction form
    53,648.58/80,472.87 = 20,368.66/x
  3. Step 3: Cross multiply
    53,648.58x = 80,472.87 × 20,368.66
  4. Step 4: Simplify right side
    53,648.58x = 1,639,124,460.76
  5. Step 5: Solve for x
    x = 1,639,124,460.76/53,648.58
  6. Step 6: Final answer
    x = 30,552.99

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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.