Home / 83,749.75-115,575.10-45,509.60

Finding the Fourth Proportional to 83,749.75, 115,575.10 and 45,509.60

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Solution

The fourth proportional to 83,749.75, 115,575.10 and 45,509.60 is: 62,803.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,749.75 : 115,575.10 = 45,509.60 : x
  2. Step 2: Convert to fraction form
    83,749.75/115,575.10 = 45,509.60/x
  3. Step 3: Cross multiply
    83,749.75x = 115,575.10 × 45,509.60
  4. Step 4: Simplify right side
    83,749.75x = 5,259,776,570.96
  5. Step 5: Solve for x
    x = 5,259,776,570.96/83,749.75
  6. Step 6: Final answer
    x = 62,803.49

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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.