Home / 53,155.09-73,354.08-29,281.78

Finding the Fourth Proportional to 53,155.09, 73,354.08 and 29,281.78

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Solution

The fourth proportional to 53,155.09, 73,354.08 and 29,281.78 is: 40,408.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,155.09 : 73,354.08 = 29,281.78 : x
  2. Step 2: Convert to fraction form
    53,155.09/73,354.08 = 29,281.78/x
  3. Step 3: Cross multiply
    53,155.09x = 73,354.08 × 29,281.78
  4. Step 4: Simplify right side
    53,155.09x = 2,147,938,032.66
  5. Step 5: Solve for x
    x = 2,147,938,032.66/53,155.09
  6. Step 6: Final answer
    x = 40,408.89

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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.