Home / 91,299.51-125,990.96-51,013.60

Finding the Fourth Proportional to 91,299.51, 125,990.96 and 51,013.60

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Solution

The fourth proportional to 91,299.51, 125,990.96 and 51,013.60 is: 70,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,299.51 : 125,990.96 = 51,013.60 : x
  2. Step 2: Convert to fraction form
    91,299.51/125,990.96 = 51,013.60/x
  3. Step 3: Cross multiply
    91,299.51x = 125,990.96 × 51,013.60
  4. Step 4: Simplify right side
    91,299.51x = 6,427,252,437.06
  5. Step 5: Solve for x
    x = 6,427,252,437.06/91,299.51
  6. Step 6: Final answer
    x = 70,397.45

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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.