Home / 90,688.08-125,144.16-50,399.52

Finding the Fourth Proportional to 90,688.08, 125,144.16 and 50,399.52

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Solution

The fourth proportional to 90,688.08, 125,144.16 and 50,399.52 is: 69,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,688.08 : 125,144.16 = 50,399.52 : x
  2. Step 2: Convert to fraction form
    90,688.08/125,144.16 = 50,399.52/x
  3. Step 3: Cross multiply
    90,688.08x = 125,144.16 × 50,399.52
  4. Step 4: Simplify right side
    90,688.08x = 6,307,205,594.80
  5. Step 5: Solve for x
    x = 6,307,205,594.80/90,688.08
  6. Step 6: Final answer
    x = 69,548.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.