Home / 56,031.84-77,326.80-30,881.28

Finding the Fourth Proportional to 56,031.84, 77,326.80 and 30,881.28

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Solution

The fourth proportional to 56,031.84, 77,326.80 and 30,881.28 is: 42,617.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,031.84 : 77,326.80 = 30,881.28 : x
  2. Step 2: Convert to fraction form
    56,031.84/77,326.80 = 30,881.28/x
  3. Step 3: Cross multiply
    56,031.84x = 77,326.80 × 30,881.28
  4. Step 4: Simplify right side
    56,031.84x = 2,387,950,562.30
  5. Step 5: Solve for x
    x = 2,387,950,562.30/56,031.84
  6. Step 6: Final answer
    x = 42,617.74

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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.