Home / 78,588.16-108,449.76-45,052

Finding the Fourth Proportional to 78,588.16, 108,449.76 and 45,052

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Solution

The fourth proportional to 78,588.16, 108,449.76 and 45,052 is: 62,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,588.16 : 108,449.76 = 45,052 : x
  2. Step 2: Convert to fraction form
    78,588.16/108,449.76 = 45,052/x
  3. Step 3: Cross multiply
    78,588.16x = 108,449.76 × 45,052
  4. Step 4: Simplify right side
    78,588.16x = 4,885,878,587.52
  5. Step 5: Solve for x
    x = 4,885,878,587.52/78,588.16
  6. Step 6: Final answer
    x = 62,170.67

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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.