Home / 99,211.44-136,913.28-53,890.32

Finding the Fourth Proportional to 99,211.44, 136,913.28 and 53,890.32

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Solution

The fourth proportional to 99,211.44, 136,913.28 and 53,890.32 is: 74,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,211.44 : 136,913.28 = 53,890.32 : x
  2. Step 2: Convert to fraction form
    99,211.44/136,913.28 = 53,890.32/x
  3. Step 3: Cross multiply
    99,211.44x = 136,913.28 × 53,890.32
  4. Step 4: Simplify right side
    99,211.44x = 7,378,300,471.45
  5. Step 5: Solve for x
    x = 7,378,300,471.45/99,211.44
  6. Step 6: Final answer
    x = 74,369.45

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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.