Home / 92,821.02-128,063.64-54,568.36

Finding the Fourth Proportional to 92,821.02, 128,063.64 and 54,568.36

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Solution

The fourth proportional to 92,821.02, 128,063.64 and 54,568.36 is: 75,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,821.02 : 128,063.64 = 54,568.36 : x
  2. Step 2: Convert to fraction form
    92,821.02/128,063.64 = 54,568.36/x
  3. Step 3: Cross multiply
    92,821.02x = 128,063.64 × 54,568.36
  4. Step 4: Simplify right side
    92,821.02x = 6,988,222,810.43
  5. Step 5: Solve for x
    x = 6,988,222,810.43/92,821.02
  6. Step 6: Final answer
    x = 75,287.07

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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.