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Finding the Fourth Proportional to 91,258.65, 125,935.59 and 50,973

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Solution

The fourth proportional to 91,258.65, 125,935.59 and 50,973 is: 70,341.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,258.65 : 125,935.59 = 50,973 : x
  2. Step 2: Convert to fraction form
    91,258.65/125,935.59 = 50,973/x
  3. Step 3: Cross multiply
    91,258.65x = 125,935.59 × 50,973
  4. Step 4: Simplify right side
    91,258.65x = 6,419,314,829.07
  5. Step 5: Solve for x
    x = 6,419,314,829.07/91,258.65
  6. Step 6: Final answer
    x = 70,341.99

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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.