Home / 42,777.04-64,169.31-11,186.98

Finding the Fourth Proportional to 42,777.04, 64,169.31 and 11,186.98

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Solution

The fourth proportional to 42,777.04, 64,169.31 and 11,186.98 is: 16,781.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,777.04 : 64,169.31 = 11,186.98 : x
  2. Step 2: Convert to fraction form
    42,777.04/64,169.31 = 11,186.98/x
  3. Step 3: Cross multiply
    42,777.04x = 64,169.31 × 11,186.98
  4. Step 4: Simplify right side
    42,777.04x = 717,860,574.72
  5. Step 5: Solve for x
    x = 717,860,574.72/42,777.04
  6. Step 6: Final answer
    x = 16,781.45

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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.