Home / 99,042.57-136,670.63-54,330.57

Finding the Fourth Proportional to 99,042.57, 136,670.63 and 54,330.57

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Solution

The fourth proportional to 99,042.57, 136,670.63 and 54,330.57 is: 74,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,042.57 : 136,670.63 = 54,330.57 : x
  2. Step 2: Convert to fraction form
    99,042.57/136,670.63 = 54,330.57/x
  3. Step 3: Cross multiply
    99,042.57x = 136,670.63 × 54,330.57
  4. Step 4: Simplify right side
    99,042.57x = 7,425,392,958.51
  5. Step 5: Solve for x
    x = 7,425,392,958.51/99,042.57
  6. Step 6: Final answer
    x = 74,971.73

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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.