Home / 56,871.04-85,192.36-28,321.98

Finding the Fourth Proportional to 56,871.04, 85,192.36 and 28,321.98

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Solution

The fourth proportional to 56,871.04, 85,192.36 and 28,321.98 is: 42,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,871.04 : 85,192.36 = 28,321.98 : x
  2. Step 2: Convert to fraction form
    56,871.04/85,192.36 = 28,321.98/x
  3. Step 3: Cross multiply
    56,871.04x = 85,192.36 × 28,321.98
  4. Step 4: Simplify right side
    56,871.04x = 2,412,816,316.07
  5. Step 5: Solve for x
    x = 2,412,816,316.07/56,871.04
  6. Step 6: Final answer
    x = 42,426.10

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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.