Home / 75,299.04-112,904.28-28,555.20

Finding the Fourth Proportional to 75,299.04, 112,904.28 and 28,555.20

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Solution

The fourth proportional to 75,299.04, 112,904.28 and 28,555.20 is: 42,816.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,299.04 : 112,904.28 = 28,555.20 : x
  2. Step 2: Convert to fraction form
    75,299.04/112,904.28 = 28,555.20/x
  3. Step 3: Cross multiply
    75,299.04x = 112,904.28 × 28,555.20
  4. Step 4: Simplify right side
    75,299.04x = 3,224,004,296.26
  5. Step 5: Solve for x
    x = 3,224,004,296.26/75,299.04
  6. Step 6: Final answer
    x = 42,816.01

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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.