Home / 93,869.70-129,540.38-51,428.13

Finding the Fourth Proportional to 93,869.70, 129,540.38 and 51,428.13

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Solution

The fourth proportional to 93,869.70, 129,540.38 and 51,428.13 is: 70,970.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,869.70 : 129,540.38 = 51,428.13 : x
  2. Step 2: Convert to fraction form
    93,869.70/129,540.38 = 51,428.13/x
  3. Step 3: Cross multiply
    93,869.70x = 129,540.38 × 51,428.13
  4. Step 4: Simplify right side
    93,869.70x = 6,662,019,245.75
  5. Step 5: Solve for x
    x = 6,662,019,245.75/93,869.70
  6. Step 6: Final answer
    x = 70,970.92

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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.