Home / 91,427.68-126,182.32-51,156.88

Finding the Fourth Proportional to 91,427.68, 126,182.32 and 51,156.88

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Solution

The fourth proportional to 91,427.68, 126,182.32 and 51,156.88 is: 70,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,427.68 : 126,182.32 = 51,156.88 : x
  2. Step 2: Convert to fraction form
    91,427.68/126,182.32 = 51,156.88/x
  3. Step 3: Cross multiply
    91,427.68x = 126,182.32 × 51,156.88
  4. Step 4: Simplify right side
    91,427.68x = 6,455,093,802.36
  5. Step 5: Solve for x
    x = 6,455,093,802.36/91,427.68
  6. Step 6: Final answer
    x = 70,603.28

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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.