Home / 77,811.96-116,725.28-60,301.40

Finding the Fourth Proportional to 77,811.96, 116,725.28 and 60,301.40

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Solution

The fourth proportional to 77,811.96, 116,725.28 and 60,301.40 is: 90,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,811.96 : 116,725.28 = 60,301.40 : x
  2. Step 2: Convert to fraction form
    77,811.96/116,725.28 = 60,301.40/x
  3. Step 3: Cross multiply
    77,811.96x = 116,725.28 × 60,301.40
  4. Step 4: Simplify right side
    77,811.96x = 7,038,697,799.39
  5. Step 5: Solve for x
    x = 7,038,697,799.39/77,811.96
  6. Step 6: Final answer
    x = 90,457.79

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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.