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Finding the Fourth Proportional to 69,130.34, 95,400.08 and 38,916.13

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Solution

The fourth proportional to 69,130.34, 95,400.08 and 38,916.13 is: 53,704.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,130.34 : 95,400.08 = 38,916.13 : x
  2. Step 2: Convert to fraction form
    69,130.34/95,400.08 = 38,916.13/x
  3. Step 3: Cross multiply
    69,130.34x = 95,400.08 × 38,916.13
  4. Step 4: Simplify right side
    69,130.34x = 3,712,601,807.02
  5. Step 5: Solve for x
    x = 3,712,601,807.02/69,130.34
  6. Step 6: Final answer
    x = 53,704.37

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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.