Home / 53,962.79-74,449.12-31,289.30

Finding the Fourth Proportional to 53,962.79, 74,449.12 and 31,289.30

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Solution

The fourth proportional to 53,962.79, 74,449.12 and 31,289.30 is: 43,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,962.79 : 74,449.12 = 31,289.30 : x
  2. Step 2: Convert to fraction form
    53,962.79/74,449.12 = 31,289.30/x
  3. Step 3: Cross multiply
    53,962.79x = 74,449.12 × 31,289.30
  4. Step 4: Simplify right side
    53,962.79x = 2,329,460,321.72
  5. Step 5: Solve for x
    x = 2,329,460,321.72/53,962.79
  6. Step 6: Final answer
    x = 43,167.90

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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.