Home / 55,508.53-76,508.47-42,075.49

Finding the Fourth Proportional to 55,508.53, 76,508.47 and 42,075.49

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Solution

The fourth proportional to 55,508.53, 76,508.47 and 42,075.49 is: 57,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,508.53 : 76,508.47 = 42,075.49 : x
  2. Step 2: Convert to fraction form
    55,508.53/76,508.47 = 42,075.49/x
  3. Step 3: Cross multiply
    55,508.53x = 76,508.47 × 42,075.49
  4. Step 4: Simplify right side
    55,508.53x = 3,219,131,364.40
  5. Step 5: Solve for x
    x = 3,219,131,364.40/55,508.53
  6. Step 6: Final answer
    x = 57,993.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.