Home / 91,396.61-126,130.76-51,110.28

Finding the Fourth Proportional to 91,396.61, 126,130.76 and 51,110.28

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Solution

The fourth proportional to 91,396.61, 126,130.76 and 51,110.28 is: 70,534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,396.61 : 126,130.76 = 51,110.28 : x
  2. Step 2: Convert to fraction form
    91,396.61/126,130.76 = 51,110.28/x
  3. Step 3: Cross multiply
    91,396.61x = 126,130.76 × 51,110.28
  4. Step 4: Simplify right side
    91,396.61x = 6,446,578,587.99
  5. Step 5: Solve for x
    x = 6,446,578,587.99/91,396.61
  6. Step 6: Final answer
    x = 70,534.11

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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.