Home / 65,566.28-90,406.58-53,890.94

Finding the Fourth Proportional to 65,566.28, 90,406.58 and 53,890.94

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Solution

The fourth proportional to 65,566.28, 90,406.58 and 53,890.94 is: 74,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,566.28 : 90,406.58 = 53,890.94 : x
  2. Step 2: Convert to fraction form
    65,566.28/90,406.58 = 53,890.94/x
  3. Step 3: Cross multiply
    65,566.28x = 90,406.58 × 53,890.94
  4. Step 4: Simplify right side
    65,566.28x = 4,872,095,578.39
  5. Step 5: Solve for x
    x = 4,872,095,578.39/65,566.28
  6. Step 6: Final answer
    x = 74,307.95

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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.