Home / 286,637.22-429,965.52-76,275.36

Finding the Fourth Proportional to 286,637.22, 429,965.52 and 76,275.36

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Solution

The fourth proportional to 286,637.22, 429,965.52 and 76,275.36 is: 114,415.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,637.22 : 429,965.52 = 76,275.36 : x
  2. Step 2: Convert to fraction form
    286,637.22/429,965.52 = 76,275.36/x
  3. Step 3: Cross multiply
    286,637.22x = 429,965.52 × 76,275.36
  4. Step 4: Simplify right side
    286,637.22x = 32,795,774,825.59
  5. Step 5: Solve for x
    x = 32,795,774,825.59/286,637.22
  6. Step 6: Final answer
    x = 114,415.62

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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.