Home / 78,416.88-108,215.55-44,431.67

Finding the Fourth Proportional to 78,416.88, 108,215.55 and 44,431.67

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Solution

The fourth proportional to 78,416.88, 108,215.55 and 44,431.67 is: 61,315.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,416.88 : 108,215.55 = 44,431.67 : x
  2. Step 2: Convert to fraction form
    78,416.88/108,215.55 = 44,431.67/x
  3. Step 3: Cross multiply
    78,416.88x = 108,215.55 × 44,431.67
  4. Step 4: Simplify right side
    78,416.88x = 4,808,197,065.39
  5. Step 5: Solve for x
    x = 4,808,197,065.39/78,416.88
  6. Step 6: Final answer
    x = 61,315.84

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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.