Home / 53,840.68-74,280.21-53,757.65

Finding the Fourth Proportional to 53,840.68, 74,280.21 and 53,757.65

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Solution

The fourth proportional to 53,840.68, 74,280.21 and 53,757.65 is: 74,165.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,840.68 : 74,280.21 = 53,757.65 : x
  2. Step 2: Convert to fraction form
    53,840.68/74,280.21 = 53,757.65/x
  3. Step 3: Cross multiply
    53,840.68x = 74,280.21 × 53,757.65
  4. Step 4: Simplify right side
    53,840.68x = 3,993,129,531.11
  5. Step 5: Solve for x
    x = 3,993,129,531.11/53,840.68
  6. Step 6: Final answer
    x = 74,165.66

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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.