Home / 56,421.53-77,860.61-30,927.95

Finding the Fourth Proportional to 56,421.53, 77,860.61 and 30,927.95

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Solution

The fourth proportional to 56,421.53, 77,860.61 and 30,927.95 is: 42,679.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,421.53 : 77,860.61 = 30,927.95 : x
  2. Step 2: Convert to fraction form
    56,421.53/77,860.61 = 30,927.95/x
  3. Step 3: Cross multiply
    56,421.53x = 77,860.61 × 30,927.95
  4. Step 4: Simplify right side
    56,421.53x = 2,408,069,093.06
  5. Step 5: Solve for x
    x = 2,408,069,093.06/56,421.53
  6. Step 6: Final answer
    x = 42,679.97

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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.