Home / 55,807.04-83,710.72-13,687.32

Finding the Fourth Proportional to 55,807.04, 83,710.72 and 13,687.32

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Solution

The fourth proportional to 55,807.04, 83,710.72 and 13,687.32 is: 20,531.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,807.04 : 83,710.72 = 13,687.32 : x
  2. Step 2: Convert to fraction form
    55,807.04/83,710.72 = 13,687.32/x
  3. Step 3: Cross multiply
    55,807.04x = 83,710.72 × 13,687.32
  4. Step 4: Simplify right side
    55,807.04x = 1,145,775,412.07
  5. Step 5: Solve for x
    x = 1,145,775,412.07/55,807.04
  6. Step 6: Final answer
    x = 20,531.02

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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.