Home / 91,656.36-126,485.28-55,838.88

Finding the Fourth Proportional to 91,656.36, 126,485.28 and 55,838.88

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Solution

The fourth proportional to 91,656.36, 126,485.28 and 55,838.88 is: 77,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,656.36 : 126,485.28 = 55,838.88 : x
  2. Step 2: Convert to fraction form
    91,656.36/126,485.28 = 55,838.88/x
  3. Step 3: Cross multiply
    91,656.36x = 126,485.28 × 55,838.88
  4. Step 4: Simplify right side
    91,656.36x = 7,062,796,371.69
  5. Step 5: Solve for x
    x = 7,062,796,371.69/91,656.36
  6. Step 6: Final answer
    x = 77,057.35

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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.