Home / 91,286.56-125,980.32-51,001.12

Finding the Fourth Proportional to 91,286.56, 125,980.32 and 51,001.12

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Solution

The fourth proportional to 91,286.56, 125,980.32 and 51,001.12 is: 70,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,286.56 : 125,980.32 = 51,001.12 : x
  2. Step 2: Convert to fraction form
    91,286.56/125,980.32 = 51,001.12/x
  3. Step 3: Cross multiply
    91,286.56x = 125,980.32 × 51,001.12
  4. Step 4: Simplify right side
    91,286.56x = 6,425,137,417.96
  5. Step 5: Solve for x
    x = 6,425,137,417.96/91,286.56
  6. Step 6: Final answer
    x = 70,384.26

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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.