Home / 255,081.12-382,636.56-77,594.40

Finding the Fourth Proportional to 255,081.12, 382,636.56 and 77,594.40

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Solution

The fourth proportional to 255,081.12, 382,636.56 and 77,594.40 is: 116,396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,081.12 : 382,636.56 = 77,594.40 : x
  2. Step 2: Convert to fraction form
    255,081.12/382,636.56 = 77,594.40/x
  3. Step 3: Cross multiply
    255,081.12x = 382,636.56 × 77,594.40
  4. Step 4: Simplify right side
    255,081.12x = 29,690,454,291.26
  5. Step 5: Solve for x
    x = 29,690,454,291.26/255,081.12
  6. Step 6: Final answer
    x = 116,396.13

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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.