Home / 56,426.94-77,865.03-30,929.22

Finding the Fourth Proportional to 56,426.94, 77,865.03 and 30,929.22

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Solution

The fourth proportional to 56,426.94, 77,865.03 and 30,929.22 is: 42,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,426.94 : 77,865.03 = 30,929.22 : x
  2. Step 2: Convert to fraction form
    56,426.94/77,865.03 = 30,929.22/x
  3. Step 3: Cross multiply
    56,426.94x = 77,865.03 × 30,929.22
  4. Step 4: Simplify right side
    56,426.94x = 2,408,304,643.18
  5. Step 5: Solve for x
    x = 2,408,304,643.18/56,426.94
  6. Step 6: Final answer
    x = 42,680.05

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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.