Home / 90,570.48-135,847.08-28,206.96

Finding the Fourth Proportional to 90,570.48, 135,847.08 and 28,206.96

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Solution

The fourth proportional to 90,570.48, 135,847.08 and 28,206.96 is: 42,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,570.48 : 135,847.08 = 28,206.96 : x
  2. Step 2: Convert to fraction form
    90,570.48/135,847.08 = 28,206.96/x
  3. Step 3: Cross multiply
    90,570.48x = 135,847.08 × 28,206.96
  4. Step 4: Simplify right side
    90,570.48x = 3,831,833,151.68
  5. Step 5: Solve for x
    x = 3,831,833,151.68/90,570.48
  6. Step 6: Final answer
    x = 42,307.75

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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.