Home / 65,802.43-90,724.96-54,916.18

Finding the Fourth Proportional to 65,802.43, 90,724.96 and 54,916.18

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Solution

The fourth proportional to 65,802.43, 90,724.96 and 54,916.18 is: 75,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,802.43 : 90,724.96 = 54,916.18 : x
  2. Step 2: Convert to fraction form
    65,802.43/90,724.96 = 54,916.18/x
  3. Step 3: Cross multiply
    65,802.43x = 90,724.96 × 54,916.18
  4. Step 4: Simplify right side
    65,802.43x = 4,982,268,075.69
  5. Step 5: Solve for x
    x = 4,982,268,075.69/65,802.43
  6. Step 6: Final answer
    x = 75,715.57

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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.