Home / 99,015.50-136,650.03-54,312.14

Finding the Fourth Proportional to 99,015.50, 136,650.03 and 54,312.14

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Solution

The fourth proportional to 99,015.50, 136,650.03 and 54,312.14 is: 74,955.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,015.50 : 136,650.03 = 54,312.14 : x
  2. Step 2: Convert to fraction form
    99,015.50/136,650.03 = 54,312.14/x
  3. Step 3: Cross multiply
    99,015.50x = 136,650.03 × 54,312.14
  4. Step 4: Simplify right side
    99,015.50x = 7,421,755,560.36
  5. Step 5: Solve for x
    x = 7,421,755,560.36/99,015.50
  6. Step 6: Final answer
    x = 74,955.49

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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.