Home / 91,022.40-136,533.64-28,697.76

Finding the Fourth Proportional to 91,022.40, 136,533.64 and 28,697.76

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Solution

The fourth proportional to 91,022.40, 136,533.64 and 28,697.76 is: 43,046.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,022.40 : 136,533.64 = 28,697.76 : x
  2. Step 2: Convert to fraction form
    91,022.40/136,533.64 = 28,697.76/x
  3. Step 3: Cross multiply
    91,022.40x = 136,533.64 × 28,697.76
  4. Step 4: Simplify right side
    91,022.40x = 3,918,209,632.65
  5. Step 5: Solve for x
    x = 3,918,209,632.65/91,022.40
  6. Step 6: Final answer
    x = 43,046.65

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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.