Home / 58,345.20-87,517.80-55,785.60

Finding the Fourth Proportional to 58,345.20, 87,517.80 and 55,785.60

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Solution

The fourth proportional to 58,345.20, 87,517.80 and 55,785.60 is: 83,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,345.20 : 87,517.80 = 55,785.60 : x
  2. Step 2: Convert to fraction form
    58,345.20/87,517.80 = 55,785.60/x
  3. Step 3: Cross multiply
    58,345.20x = 87,517.80 × 55,785.60
  4. Step 4: Simplify right side
    58,345.20x = 4,882,232,983.68
  5. Step 5: Solve for x
    x = 4,882,232,983.68/58,345.20
  6. Step 6: Final answer
    x = 83,678.40

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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.