Home / 57,253.36-78,969.66-55,326.64

Finding the Fourth Proportional to 57,253.36, 78,969.66 and 55,326.64

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Solution

The fourth proportional to 57,253.36, 78,969.66 and 55,326.64 is: 76,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,253.36 : 78,969.66 = 55,326.64 : x
  2. Step 2: Convert to fraction form
    57,253.36/78,969.66 = 55,326.64/x
  3. Step 3: Cross multiply
    57,253.36x = 78,969.66 × 55,326.64
  4. Step 4: Simplify right side
    57,253.36x = 4,369,125,949.74
  5. Step 5: Solve for x
    x = 4,369,125,949.74/57,253.36
  6. Step 6: Final answer
    x = 76,312.13

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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.