Home / 55,913.36-77,141.56-37,977.28

Finding the Fourth Proportional to 55,913.36, 77,141.56 and 37,977.28

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Solution

The fourth proportional to 55,913.36, 77,141.56 and 37,977.28 is: 52,395.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,913.36 : 77,141.56 = 37,977.28 : x
  2. Step 2: Convert to fraction form
    55,913.36/77,141.56 = 37,977.28/x
  3. Step 3: Cross multiply
    55,913.36x = 77,141.56 × 37,977.28
  4. Step 4: Simplify right side
    55,913.36x = 2,929,626,623.76
  5. Step 5: Solve for x
    x = 2,929,626,623.76/55,913.36
  6. Step 6: Final answer
    x = 52,395.82

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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.