Home / 90,438.16-124,805.70-50,152.40

Finding the Fourth Proportional to 90,438.16, 124,805.70 and 50,152.40

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Solution

The fourth proportional to 90,438.16, 124,805.70 and 50,152.40 is: 69,210.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,438.16 : 124,805.70 = 50,152.40 : x
  2. Step 2: Convert to fraction form
    90,438.16/124,805.70 = 50,152.40/x
  3. Step 3: Cross multiply
    90,438.16x = 124,805.70 × 50,152.40
  4. Step 4: Simplify right side
    90,438.16x = 6,259,305,388.68
  5. Step 5: Solve for x
    x = 6,259,305,388.68/90,438.16
  6. Step 6: Final answer
    x = 69,210.89

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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.