Home / 90,079.56-135,124.92-30,113.44

Finding the Fourth Proportional to 90,079.56, 135,124.92 and 30,113.44

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Solution

The fourth proportional to 90,079.56, 135,124.92 and 30,113.44 is: 45,172.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,079.56 : 135,124.92 = 30,113.44 : x
  2. Step 2: Convert to fraction form
    90,079.56/135,124.92 = 30,113.44/x
  3. Step 3: Cross multiply
    90,079.56x = 135,124.92 × 30,113.44
  4. Step 4: Simplify right side
    90,079.56x = 4,069,075,833.11
  5. Step 5: Solve for x
    x = 4,069,075,833.11/90,079.56
  6. Step 6: Final answer
    x = 45,172.02

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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.