Home / 59,991.40-89,979.18-15,621.40

Finding the Fourth Proportional to 59,991.40, 89,979.18 and 15,621.40

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Solution

The fourth proportional to 59,991.40, 89,979.18 and 15,621.40 is: 23,430.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,991.40 : 89,979.18 = 15,621.40 : x
  2. Step 2: Convert to fraction form
    59,991.40/89,979.18 = 15,621.40/x
  3. Step 3: Cross multiply
    59,991.40x = 89,979.18 × 15,621.40
  4. Step 4: Simplify right side
    59,991.40x = 1,405,600,762.45
  5. Step 5: Solve for x
    x = 1,405,600,762.45/59,991.40
  6. Step 6: Final answer
    x = 23,430.04

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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.