Home / 75,861.28-113,707.14-28,430.74

Finding the Fourth Proportional to 75,861.28, 113,707.14 and 28,430.74

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Solution

The fourth proportional to 75,861.28, 113,707.14 and 28,430.74 is: 42,614.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,861.28 : 113,707.14 = 28,430.74 : x
  2. Step 2: Convert to fraction form
    75,861.28/113,707.14 = 28,430.74/x
  3. Step 3: Cross multiply
    75,861.28x = 113,707.14 × 28,430.74
  4. Step 4: Simplify right side
    75,861.28x = 3,232,778,133.48
  5. Step 5: Solve for x
    x = 3,232,778,133.48/75,861.28
  6. Step 6: Final answer
    x = 42,614.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.