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Finding the Fourth Proportional to 60,222.72, 90,338.88 and 18,669.12

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Solution

The fourth proportional to 60,222.72, 90,338.88 and 18,669.12 is: 28,005.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,222.72 : 90,338.88 = 18,669.12 : x
  2. Step 2: Convert to fraction form
    60,222.72/90,338.88 = 18,669.12/x
  3. Step 3: Cross multiply
    60,222.72x = 90,338.88 × 18,669.12
  4. Step 4: Simplify right side
    60,222.72x = 1,686,547,391.39
  5. Step 5: Solve for x
    x = 1,686,547,391.39/60,222.72
  6. Step 6: Final answer
    x = 28,005.17

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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.