Home / 56,427.02-77,868.78-30,934.84

Finding the Fourth Proportional to 56,427.02, 77,868.78 and 30,934.84

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Solution

The fourth proportional to 56,427.02, 77,868.78 and 30,934.84 is: 42,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,427.02 : 77,868.78 = 30,934.84 : x
  2. Step 2: Convert to fraction form
    56,427.02/77,868.78 = 30,934.84/x
  3. Step 3: Cross multiply
    56,427.02x = 77,868.78 × 30,934.84
  4. Step 4: Simplify right side
    56,427.02x = 2,408,858,250.30
  5. Step 5: Solve for x
    x = 2,408,858,250.30/56,427.02
  6. Step 6: Final answer
    x = 42,689.80

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1.5x scale

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.