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Finding the Fourth Proportional to 76,017.28, 104,903.68 and 42,483.28

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Solution

The fourth proportional to 76,017.28, 104,903.68 and 42,483.28 is: 58,626.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,017.28 : 104,903.68 = 42,483.28 : x
  2. Step 2: Convert to fraction form
    76,017.28/104,903.68 = 42,483.28/x
  3. Step 3: Cross multiply
    76,017.28x = 104,903.68 × 42,483.28
  4. Step 4: Simplify right side
    76,017.28x = 4,456,652,410.47
  5. Step 5: Solve for x
    x = 4,456,652,410.47/76,017.28
  6. Step 6: Final answer
    x = 58,626.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.