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Finding the Fourth Proportional to 60,019.04, 90,030.12 and 20,576

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Solution

The fourth proportional to 60,019.04, 90,030.12 and 20,576 is: 30,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,019.04 : 90,030.12 = 20,576 : x
  2. Step 2: Convert to fraction form
    60,019.04/90,030.12 = 20,576/x
  3. Step 3: Cross multiply
    60,019.04x = 90,030.12 × 20,576
  4. Step 4: Simplify right side
    60,019.04x = 1,852,459,749.12
  5. Step 5: Solve for x
    x = 1,852,459,749.12/60,019.04
  6. Step 6: Final answer
    x = 30,864.53

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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.