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Finding the Fourth Proportional to 60,419.04, 90,655.52 and 30,821.28

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Solution

The fourth proportional to 60,419.04, 90,655.52 and 30,821.28 is: 46,245.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,419.04 : 90,655.52 = 30,821.28 : x
  2. Step 2: Convert to fraction form
    60,419.04/90,655.52 = 30,821.28/x
  3. Step 3: Cross multiply
    60,419.04x = 90,655.52 × 30,821.28
  4. Step 4: Simplify right side
    60,419.04x = 2,794,119,165.47
  5. Step 5: Solve for x
    x = 2,794,119,165.47/60,419.04
  6. Step 6: Final answer
    x = 46,245.67

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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.