Home / 90,434.52-135,632.34-56,684.25

Finding the Fourth Proportional to 90,434.52, 135,632.34 and 56,684.25

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Solution

The fourth proportional to 90,434.52, 135,632.34 and 56,684.25 is: 85,014.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,434.52 : 135,632.34 = 56,684.25 : x
  2. Step 2: Convert to fraction form
    90,434.52/135,632.34 = 56,684.25/x
  3. Step 3: Cross multiply
    90,434.52x = 135,632.34 × 56,684.25
  4. Step 4: Simplify right side
    90,434.52x = 7,688,217,468.65
  5. Step 5: Solve for x
    x = 7,688,217,468.65/90,434.52
  6. Step 6: Final answer
    x = 85,014.19

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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.