Home / 213,707.52-320,579.64-55,935.72

Finding the Fourth Proportional to 213,707.52, 320,579.64 and 55,935.72

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Solution

The fourth proportional to 213,707.52, 320,579.64 and 55,935.72 is: 83,908.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,707.52 : 320,579.64 = 55,935.72 : x
  2. Step 2: Convert to fraction form
    213,707.52/320,579.64 = 55,935.72/x
  3. Step 3: Cross multiply
    213,707.52x = 320,579.64 × 55,935.72
  4. Step 4: Simplify right side
    213,707.52x = 17,931,852,980.74
  5. Step 5: Solve for x
    x = 17,931,852,980.74/213,707.52
  6. Step 6: Final answer
    x = 83,908.39

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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.