Home / 60,730.20-91,055.70-54,509.40

Finding the Fourth Proportional to 60,730.20, 91,055.70 and 54,509.40

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Solution

The fourth proportional to 60,730.20, 91,055.70 and 54,509.40 is: 81,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,730.20 : 91,055.70 = 54,509.40 : x
  2. Step 2: Convert to fraction form
    60,730.20/91,055.70 = 54,509.40/x
  3. Step 3: Cross multiply
    60,730.20x = 91,055.70 × 54,509.40
  4. Step 4: Simplify right side
    60,730.20x = 4,963,391,573.58
  5. Step 5: Solve for x
    x = 4,963,391,573.58/60,730.20
  6. Step 6: Final answer
    x = 81,728.56

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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.