Home / 91,970.20-138,007.70-35,803.02

Finding the Fourth Proportional to 91,970.20, 138,007.70 and 35,803.02

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Solution

The fourth proportional to 91,970.20, 138,007.70 and 35,803.02 is: 53,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,970.20 : 138,007.70 = 35,803.02 : x
  2. Step 2: Convert to fraction form
    91,970.20/138,007.70 = 35,803.02/x
  3. Step 3: Cross multiply
    91,970.20x = 138,007.70 × 35,803.02
  4. Step 4: Simplify right side
    91,970.20x = 4,941,092,443.25
  5. Step 5: Solve for x
    x = 4,941,092,443.25/91,970.20
  6. Step 6: Final answer
    x = 53,724.93

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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.