Home / 65,416.05-90,269.00-37,121.74

Finding the Fourth Proportional to 65,416.05, 90,269.00 and 37,121.74

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Solution

The fourth proportional to 65,416.05, 90,269.00 and 37,121.74 is: 51,225.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,416.05 : 90,269.00 = 37,121.74 : x
  2. Step 2: Convert to fraction form
    65,416.05/90,269.00 = 37,121.74/x
  3. Step 3: Cross multiply
    65,416.05x = 90,269.00 × 37,121.74
  4. Step 4: Simplify right side
    65,416.05x = 3,350,942,215.19
  5. Step 5: Solve for x
    x = 3,350,942,215.19/65,416.05
  6. Step 6: Final answer
    x = 51,225.08

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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.