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Finding the Fourth Proportional to 69,810.48, 96,339.48 and 37,979.40

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Solution

The fourth proportional to 69,810.48, 96,339.48 and 37,979.40 is: 52,412.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,810.48 : 96,339.48 = 37,979.40 : x
  2. Step 2: Convert to fraction form
    69,810.48/96,339.48 = 37,979.40/x
  3. Step 3: Cross multiply
    69,810.48x = 96,339.48 × 37,979.40
  4. Step 4: Simplify right side
    69,810.48x = 3,658,915,646.71
  5. Step 5: Solve for x
    x = 3,658,915,646.71/69,810.48
  6. Step 6: Final answer
    x = 52,412.13

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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.