Home / 58,120.19-87,168.78-15,989.39

Finding the Fourth Proportional to 58,120.19, 87,168.78 and 15,989.39

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Solution

The fourth proportional to 58,120.19, 87,168.78 and 15,989.39 is: 23,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,120.19 : 87,168.78 = 15,989.39 : x
  2. Step 2: Convert to fraction form
    58,120.19/87,168.78 = 15,989.39/x
  3. Step 3: Cross multiply
    58,120.19x = 87,168.78 × 15,989.39
  4. Step 4: Simplify right side
    58,120.19x = 1,393,775,183.40
  5. Step 5: Solve for x
    x = 1,393,775,183.40/58,120.19
  6. Step 6: Final answer
    x = 23,980.91

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1.5x scale

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.