Home / 42,777.17-64,176.69-17,808.92

Finding the Fourth Proportional to 42,777.17, 64,176.69 and 17,808.92

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Solution

The fourth proportional to 42,777.17, 64,176.69 and 17,808.92 is: 26,717.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,777.17 : 64,176.69 = 17,808.92 : x
  2. Step 2: Convert to fraction form
    42,777.17/64,176.69 = 17,808.92/x
  3. Step 3: Cross multiply
    42,777.17x = 64,176.69 × 17,808.92
  4. Step 4: Simplify right side
    42,777.17x = 1,142,917,538.07
  5. Step 5: Solve for x
    x = 1,142,917,538.07/42,777.17
  6. Step 6: Final answer
    x = 26,717.93

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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.