Home / 55,628.88-83,442.56-13,509.28

Finding the Fourth Proportional to 55,628.88, 83,442.56 and 13,509.28

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Solution

The fourth proportional to 55,628.88, 83,442.56 and 13,509.28 is: 20,263.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,628.88 : 83,442.56 = 13,509.28 : x
  2. Step 2: Convert to fraction form
    55,628.88/83,442.56 = 13,509.28/x
  3. Step 3: Cross multiply
    55,628.88x = 83,442.56 × 13,509.28
  4. Step 4: Simplify right side
    55,628.88x = 1,127,248,943.71
  5. Step 5: Solve for x
    x = 1,127,248,943.71/55,628.88
  6. Step 6: Final answer
    x = 20,263.74

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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.