Home / 53,938.04-74,265.09-45,855.78

Finding the Fourth Proportional to 53,938.04, 74,265.09 and 45,855.78

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Solution

The fourth proportional to 53,938.04, 74,265.09 and 45,855.78 is: 63,136.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,938.04 : 74,265.09 = 45,855.78 : x
  2. Step 2: Convert to fraction form
    53,938.04/74,265.09 = 45,855.78/x
  3. Step 3: Cross multiply
    53,938.04x = 74,265.09 × 45,855.78
  4. Step 4: Simplify right side
    53,938.04x = 3,405,483,628.72
  5. Step 5: Solve for x
    x = 3,405,483,628.72/53,938.04
  6. Step 6: Final answer
    x = 63,136.96

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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.