Home / 90,478.87-135,718.68-37,851.46

Finding the Fourth Proportional to 90,478.87, 135,718.68 and 37,851.46

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Solution

The fourth proportional to 90,478.87, 135,718.68 and 37,851.46 is: 56,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,478.87 : 135,718.68 = 37,851.46 : x
  2. Step 2: Convert to fraction form
    90,478.87/135,718.68 = 37,851.46/x
  3. Step 3: Cross multiply
    90,478.87x = 135,718.68 × 37,851.46
  4. Step 4: Simplify right side
    90,478.87x = 5,137,150,187.27
  5. Step 5: Solve for x
    x = 5,137,150,187.27/90,478.87
  6. Step 6: Final answer
    x = 56,777.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.