Home / 83,679.77-115,444.69-53,457.25

Finding the Fourth Proportional to 83,679.77, 115,444.69 and 53,457.25

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Solution

The fourth proportional to 83,679.77, 115,444.69 and 53,457.25 is: 73,749.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,679.77 : 115,444.69 = 53,457.25 : x
  2. Step 2: Convert to fraction form
    83,679.77/115,444.69 = 53,457.25/x
  3. Step 3: Cross multiply
    83,679.77x = 115,444.69 × 53,457.25
  4. Step 4: Simplify right side
    83,679.77x = 6,171,355,232.25
  5. Step 5: Solve for x
    x = 6,171,355,232.25/83,679.77
  6. Step 6: Final answer
    x = 73,749.67

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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.