Home / 84,374.64-116,532.60-57,470.40

Finding the Fourth Proportional to 84,374.64, 116,532.60 and 57,470.40

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Solution

The fourth proportional to 84,374.64, 116,532.60 and 57,470.40 is: 79,374.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,374.64 : 116,532.60 = 57,470.40 : x
  2. Step 2: Convert to fraction form
    84,374.64/116,532.60 = 57,470.40/x
  3. Step 3: Cross multiply
    84,374.64x = 116,532.60 × 57,470.40
  4. Step 4: Simplify right side
    84,374.64x = 6,697,175,135.04
  5. Step 5: Solve for x
    x = 6,697,175,135.04/84,374.64
  6. Step 6: Final answer
    x = 79,374.27

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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.