Home / 65,911.50-98,852.40-30,338.70

Finding the Fourth Proportional to 65,911.50, 98,852.40 and 30,338.70

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Solution

The fourth proportional to 65,911.50, 98,852.40 and 30,338.70 is: 45,501.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,911.50 : 98,852.40 = 30,338.70 : x
  2. Step 2: Convert to fraction form
    65,911.50/98,852.40 = 30,338.70/x
  3. Step 3: Cross multiply
    65,911.50x = 98,852.40 × 30,338.70
  4. Step 4: Simplify right side
    65,911.50x = 2,999,053,307.88
  5. Step 5: Solve for x
    x = 2,999,053,307.88/65,911.50
  6. Step 6: Final answer
    x = 45,501.21

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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.