Home / 63,519.78-87,457.32-53,940.72

Finding the Fourth Proportional to 63,519.78, 87,457.32 and 53,940.72

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Solution

The fourth proportional to 63,519.78, 87,457.32 and 53,940.72 is: 74,268.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,519.78 : 87,457.32 = 53,940.72 : x
  2. Step 2: Convert to fraction form
    63,519.78/87,457.32 = 53,940.72/x
  3. Step 3: Cross multiply
    63,519.78x = 87,457.32 × 53,940.72
  4. Step 4: Simplify right side
    63,519.78x = 4,717,510,810.07
  5. Step 5: Solve for x
    x = 4,717,510,810.07/63,519.78
  6. Step 6: Final answer
    x = 74,268.37

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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.