Home / 91,965.78-126,904.32-51,681.24

Finding the Fourth Proportional to 91,965.78, 126,904.32 and 51,681.24

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Solution

The fourth proportional to 91,965.78, 126,904.32 and 51,681.24 is: 71,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,965.78 : 126,904.32 = 51,681.24 : x
  2. Step 2: Convert to fraction form
    91,965.78/126,904.32 = 51,681.24/x
  3. Step 3: Cross multiply
    91,965.78x = 126,904.32 × 51,681.24
  4. Step 4: Simplify right side
    91,965.78x = 6,558,572,618.96
  5. Step 5: Solve for x
    x = 6,558,572,618.96/91,965.78
  6. Step 6: Final answer
    x = 71,315.36

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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.