Home / 90,015.02-135,041.67-30,834.80

Finding the Fourth Proportional to 90,015.02, 135,041.67 and 30,834.80

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Solution

The fourth proportional to 90,015.02, 135,041.67 and 30,834.80 is: 46,258.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,015.02 : 135,041.67 = 30,834.80 : x
  2. Step 2: Convert to fraction form
    90,015.02/135,041.67 = 30,834.80/x
  3. Step 3: Cross multiply
    90,015.02x = 135,041.67 × 30,834.80
  4. Step 4: Simplify right side
    90,015.02x = 4,163,982,886.12
  5. Step 5: Solve for x
    x = 4,163,982,886.12/90,015.02
  6. Step 6: Final answer
    x = 46,258.76

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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.