Home / 75,725.28-104,501.34-42,191.28

Finding the Fourth Proportional to 75,725.28, 104,501.34 and 42,191.28

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Solution

The fourth proportional to 75,725.28, 104,501.34 and 42,191.28 is: 58,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,725.28 : 104,501.34 = 42,191.28 : x
  2. Step 2: Convert to fraction form
    75,725.28/104,501.34 = 42,191.28/x
  3. Step 3: Cross multiply
    75,725.28x = 104,501.34 × 42,191.28
  4. Step 4: Simplify right side
    75,725.28x = 4,409,045,296.32
  5. Step 5: Solve for x
    x = 4,409,045,296.32/75,725.28
  6. Step 6: Final answer
    x = 58,224.22

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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.