Home / 91,935.36-126,882.72-56,130.12

Finding the Fourth Proportional to 91,935.36, 126,882.72 and 56,130.12

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Solution

The fourth proportional to 91,935.36, 126,882.72 and 56,130.12 is: 77,466.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,935.36 : 126,882.72 = 56,130.12 : x
  2. Step 2: Convert to fraction form
    91,935.36/126,882.72 = 56,130.12/x
  3. Step 3: Cross multiply
    91,935.36x = 126,882.72 × 56,130.12
  4. Step 4: Simplify right side
    91,935.36x = 7,121,942,299.53
  5. Step 5: Solve for x
    x = 7,121,942,299.53/91,935.36
  6. Step 6: Final answer
    x = 77,466.85

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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.