Home / 61,300.20-91,970.10-30,113.58

Finding the Fourth Proportional to 61,300.20, 91,970.10 and 30,113.58

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Solution

The fourth proportional to 61,300.20, 91,970.10 and 30,113.58 is: 45,180.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,300.20 : 91,970.10 = 30,113.58 : x
  2. Step 2: Convert to fraction form
    61,300.20/91,970.10 = 30,113.58/x
  3. Step 3: Cross multiply
    61,300.20x = 91,970.10 × 30,113.58
  4. Step 4: Simplify right side
    61,300.20x = 2,769,548,963.96
  5. Step 5: Solve for x
    x = 2,769,548,963.96/61,300.20
  6. Step 6: Final answer
    x = 45,180.10

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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.