Home / 53,721.02-80,505.12-39,569.76

Finding the Fourth Proportional to 53,721.02, 80,505.12 and 39,569.76

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Solution

The fourth proportional to 53,721.02, 80,505.12 and 39,569.76 is: 59,298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,721.02 : 80,505.12 = 39,569.76 : x
  2. Step 2: Convert to fraction form
    53,721.02/80,505.12 = 39,569.76/x
  3. Step 3: Cross multiply
    53,721.02x = 80,505.12 × 39,569.76
  4. Step 4: Simplify right side
    53,721.02x = 3,185,568,079.32
  5. Step 5: Solve for x
    x = 3,185,568,079.32/53,721.02
  6. Step 6: Final answer
    x = 59,298.36

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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.