Home / 53,218.54-73,439.08-30,541.78

Finding the Fourth Proportional to 53,218.54, 73,439.08 and 30,541.78

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Solution

The fourth proportional to 53,218.54, 73,439.08 and 30,541.78 is: 42,146.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,218.54 : 73,439.08 = 30,541.78 : x
  2. Step 2: Convert to fraction form
    53,218.54/73,439.08 = 30,541.78/x
  3. Step 3: Cross multiply
    53,218.54x = 73,439.08 × 30,541.78
  4. Step 4: Simplify right side
    53,218.54x = 2,242,960,224.76
  5. Step 5: Solve for x
    x = 2,242,960,224.76/53,218.54
  6. Step 6: Final answer
    x = 42,146.22

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1.5x scale

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.