Home / 60,300.71-90,387.25-20,281.60

Finding the Fourth Proportional to 60,300.71, 90,387.25 and 20,281.60

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Solution

The fourth proportional to 60,300.71, 90,387.25 and 20,281.60 is: 30,400.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,300.71 : 90,387.25 = 20,281.60 : x
  2. Step 2: Convert to fraction form
    60,300.71/90,387.25 = 20,281.60/x
  3. Step 3: Cross multiply
    60,300.71x = 90,387.25 × 20,281.60
  4. Step 4: Simplify right side
    60,300.71x = 1,833,197,914.71
  5. Step 5: Solve for x
    x = 1,833,197,914.71/60,300.71
  6. Step 6: Final answer
    x = 30,400.93

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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.