Home / 90,979.63-125,603.99-60,816.04

Finding the Fourth Proportional to 90,979.63, 125,603.99 and 60,816.04

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Solution

The fourth proportional to 90,979.63, 125,603.99 and 60,816.04 is: 83,960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,979.63 : 125,603.99 = 60,816.04 : x
  2. Step 2: Convert to fraction form
    90,979.63/125,603.99 = 60,816.04/x
  3. Step 3: Cross multiply
    90,979.63x = 125,603.99 × 60,816.04
  4. Step 4: Simplify right side
    90,979.63x = 7,638,737,280.00
  5. Step 5: Solve for x
    x = 7,638,737,280.00/90,979.63
  6. Step 6: Final answer
    x = 83,960.96

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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.