Home / 47,915.34-66,095.72-29,979.21

Finding the Fourth Proportional to 47,915.34, 66,095.72 and 29,979.21

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Solution

The fourth proportional to 47,915.34, 66,095.72 and 29,979.21 is: 41,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,915.34 : 66,095.72 = 29,979.21 : x
  2. Step 2: Convert to fraction form
    47,915.34/66,095.72 = 29,979.21/x
  3. Step 3: Cross multiply
    47,915.34x = 66,095.72 × 29,979.21
  4. Step 4: Simplify right side
    47,915.34x = 1,981,497,139.50
  5. Step 5: Solve for x
    x = 1,981,497,139.50/47,915.34
  6. Step 6: Final answer
    x = 41,354.13

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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.