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Finding the Fourth Proportional to 53,987.19, 81,009.95 and 26,285.19

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Solution

The fourth proportional to 53,987.19, 81,009.95 and 26,285.19 is: 39,441.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,987.19 : 81,009.95 = 26,285.19 : x
  2. Step 2: Convert to fraction form
    53,987.19/81,009.95 = 26,285.19/x
  3. Step 3: Cross multiply
    53,987.19x = 81,009.95 × 26,285.19
  4. Step 4: Simplify right side
    53,987.19x = 2,129,361,796.21
  5. Step 5: Solve for x
    x = 2,129,361,796.21/53,987.19
  6. Step 6: Final answer
    x = 39,441.98

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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.