Home / 286,637.12-429,965.39-76,275.26

Finding the Fourth Proportional to 286,637.12, 429,965.39 and 76,275.26

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Solution

The fourth proportional to 286,637.12, 429,965.39 and 76,275.26 is: 114,415.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,637.12 : 429,965.39 = 76,275.26 : x
  2. Step 2: Convert to fraction form
    286,637.12/429,965.39 = 76,275.26/x
  3. Step 3: Cross multiply
    286,637.12x = 429,965.39 × 76,275.26
  4. Step 4: Simplify right side
    286,637.12x = 32,795,719,382.05
  5. Step 5: Solve for x
    x = 32,795,719,382.05/286,637.12
  6. Step 6: Final answer
    x = 114,415.47

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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.