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Finding the Fourth Proportional to 94,212.72, 130,020.80 and 53,939.12

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Solution

The fourth proportional to 94,212.72, 130,020.80 and 53,939.12 is: 74,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,212.72 : 130,020.80 = 53,939.12 : x
  2. Step 2: Convert to fraction form
    94,212.72/130,020.80 = 53,939.12/x
  3. Step 3: Cross multiply
    94,212.72x = 130,020.80 × 53,939.12
  4. Step 4: Simplify right side
    94,212.72x = 7,013,207,533.70
  5. Step 5: Solve for x
    x = 7,013,207,533.70/94,212.72
  6. Step 6: Final answer
    x = 74,440.13

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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.