Home / 91,138.25-125,750.64-52,875.62

Finding the Fourth Proportional to 91,138.25, 125,750.64 and 52,875.62

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Solution

The fourth proportional to 91,138.25, 125,750.64 and 52,875.62 is: 72,956.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,138.25 : 125,750.64 = 52,875.62 : x
  2. Step 2: Convert to fraction form
    91,138.25/125,750.64 = 52,875.62/x
  3. Step 3: Cross multiply
    91,138.25x = 125,750.64 × 52,875.62
  4. Step 4: Simplify right side
    91,138.25x = 6,649,143,403.93
  5. Step 5: Solve for x
    x = 6,649,143,403.93/91,138.25
  6. Step 6: Final answer
    x = 72,956.67

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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.