Home / 65,916.72-90,931.41-40,068.27

Finding the Fourth Proportional to 65,916.72, 90,931.41 and 40,068.27

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Solution

The fourth proportional to 65,916.72, 90,931.41 and 40,068.27 is: 55,273.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,916.72 : 90,931.41 = 40,068.27 : x
  2. Step 2: Convert to fraction form
    65,916.72/90,931.41 = 40,068.27/x
  3. Step 3: Cross multiply
    65,916.72x = 90,931.41 × 40,068.27
  4. Step 4: Simplify right side
    65,916.72x = 3,643,464,287.36
  5. Step 5: Solve for x
    x = 3,643,464,287.36/65,916.72
  6. Step 6: Final answer
    x = 55,273.75

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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.