Home / 90,718.40-125,193.48-50,430.62

Finding the Fourth Proportional to 90,718.40, 125,193.48 and 50,430.62

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Solution

The fourth proportional to 90,718.40, 125,193.48 and 50,430.62 is: 69,595.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,718.40 : 125,193.48 = 50,430.62 : x
  2. Step 2: Convert to fraction form
    90,718.40/125,193.48 = 50,430.62/x
  3. Step 3: Cross multiply
    90,718.40x = 125,193.48 × 50,430.62
  4. Step 4: Simplify right side
    90,718.40x = 6,313,584,816.36
  5. Step 5: Solve for x
    x = 6,313,584,816.36/90,718.40
  6. Step 6: Final answer
    x = 69,595.42

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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.