Home / 49,455.78-74,178.18-13,918.23

Finding the Fourth Proportional to 49,455.78, 74,178.18 and 13,918.23

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Solution

The fourth proportional to 49,455.78, 74,178.18 and 13,918.23 is: 20,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,455.78 : 74,178.18 = 13,918.23 : x
  2. Step 2: Convert to fraction form
    49,455.78/74,178.18 = 13,918.23/x
  3. Step 3: Cross multiply
    49,455.78x = 74,178.18 × 13,918.23
  4. Step 4: Simplify right side
    49,455.78x = 1,032,428,970.22
  5. Step 5: Solve for x
    x = 1,032,428,970.22/49,455.78
  6. Step 6: Final answer
    x = 20,875.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.