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Finding the Fourth Proportional to 69,574.72, 96,013.14 and 39,359.40

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Solution

The fourth proportional to 69,574.72, 96,013.14 and 39,359.40 is: 54,315.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,574.72 : 96,013.14 = 39,359.40 : x
  2. Step 2: Convert to fraction form
    69,574.72/96,013.14 = 39,359.40/x
  3. Step 3: Cross multiply
    69,574.72x = 96,013.14 × 39,359.40
  4. Step 4: Simplify right side
    69,574.72x = 3,779,019,582.52
  5. Step 5: Solve for x
    x = 3,779,019,582.52/69,574.72
  6. Step 6: Final answer
    x = 54,315.99

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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.