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Finding the Fourth Proportional to 53,555.76, 80,277.90 and 17,990.69

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Solution

The fourth proportional to 53,555.76, 80,277.90 and 17,990.69 is: 26,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,555.76 : 80,277.90 = 17,990.69 : x
  2. Step 2: Convert to fraction form
    53,555.76/80,277.90 = 17,990.69/x
  3. Step 3: Cross multiply
    53,555.76x = 80,277.90 × 17,990.69
  4. Step 4: Simplify right side
    53,555.76x = 1,444,254,411.36
  5. Step 5: Solve for x
    x = 1,444,254,411.36/53,555.76
  6. Step 6: Final answer
    x = 26,967.30

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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.