Home / 90,875.76-125,404.80-50,588.34

Finding the Fourth Proportional to 90,875.76, 125,404.80 and 50,588.34

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Solution

The fourth proportional to 90,875.76, 125,404.80 and 50,588.34 is: 69,809.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,875.76 : 125,404.80 = 50,588.34 : x
  2. Step 2: Convert to fraction form
    90,875.76/125,404.80 = 50,588.34/x
  3. Step 3: Cross multiply
    90,875.76x = 125,404.80 × 50,588.34
  4. Step 4: Simplify right side
    90,875.76x = 6,344,020,660.03
  5. Step 5: Solve for x
    x = 6,344,020,660.03/90,875.76
  6. Step 6: Final answer
    x = 69,809.82

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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.