Home / 55,530.80-83,172.36-42,965.36

Finding the Fourth Proportional to 55,530.80, 83,172.36 and 42,965.36

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Solution

The fourth proportional to 55,530.80, 83,172.36 and 42,965.36 is: 64,352.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,530.80 : 83,172.36 = 42,965.36 : x
  2. Step 2: Convert to fraction form
    55,530.80/83,172.36 = 42,965.36/x
  3. Step 3: Cross multiply
    55,530.80x = 83,172.36 × 42,965.36
  4. Step 4: Simplify right side
    55,530.80x = 3,573,530,389.45
  5. Step 5: Solve for x
    x = 3,573,530,389.45/55,530.80
  6. Step 6: Final answer
    x = 64,352.22

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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.