Home / 61,811.20-92,719.36-30,671.36

Finding the Fourth Proportional to 61,811.20, 92,719.36 and 30,671.36

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Solution

The fourth proportional to 61,811.20, 92,719.36 and 30,671.36 is: 46,008.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,811.20 : 92,719.36 = 30,671.36 : x
  2. Step 2: Convert to fraction form
    61,811.20/92,719.36 = 30,671.36/x
  3. Step 3: Cross multiply
    61,811.20x = 92,719.36 × 30,671.36
  4. Step 4: Simplify right side
    61,811.20x = 2,843,828,869.53
  5. Step 5: Solve for x
    x = 2,843,828,869.53/61,811.20
  6. Step 6: Final answer
    x = 46,008.31

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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.