Home / 94,421.08-130,300.75-51,979.61

Finding the Fourth Proportional to 94,421.08, 130,300.75 and 51,979.61

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Solution

The fourth proportional to 94,421.08, 130,300.75 and 51,979.61 is: 71,731.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,421.08 : 130,300.75 = 51,979.61 : x
  2. Step 2: Convert to fraction form
    94,421.08/130,300.75 = 51,979.61/x
  3. Step 3: Cross multiply
    94,421.08x = 130,300.75 × 51,979.61
  4. Step 4: Simplify right side
    94,421.08x = 6,772,982,558.43
  5. Step 5: Solve for x
    x = 6,772,982,558.43/94,421.08
  6. Step 6: Final answer
    x = 71,731.68

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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.