Home / 91,455.24-126,208.23-51,178.47

Finding the Fourth Proportional to 91,455.24, 126,208.23 and 51,178.47

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Solution

The fourth proportional to 91,455.24, 126,208.23 and 51,178.47 is: 70,626.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,455.24 : 126,208.23 = 51,178.47 : x
  2. Step 2: Convert to fraction form
    91,455.24/126,208.23 = 51,178.47/x
  3. Step 3: Cross multiply
    91,455.24x = 126,208.23 × 51,178.47
  4. Step 4: Simplify right side
    91,455.24x = 6,459,143,447.61
  5. Step 5: Solve for x
    x = 6,459,143,447.61/91,455.24
  6. Step 6: Final answer
    x = 70,626.28

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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.