Home / 92,971.36-128,299.71-50,530.15

Finding the Fourth Proportional to 92,971.36, 128,299.71 and 50,530.15

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Solution

The fourth proportional to 92,971.36, 128,299.71 and 50,530.15 is: 69,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,971.36 : 128,299.71 = 50,530.15 : x
  2. Step 2: Convert to fraction form
    92,971.36/128,299.71 = 50,530.15/x
  3. Step 3: Cross multiply
    92,971.36x = 128,299.71 × 50,530.15
  4. Step 4: Simplify right side
    92,971.36x = 6,483,003,591.26
  5. Step 5: Solve for x
    x = 6,483,003,591.26/92,971.36
  6. Step 6: Final answer
    x = 69,731.19

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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.