Home / 61,435.64-92,153.39-19,319.42

Finding the Fourth Proportional to 61,435.64, 92,153.39 and 19,319.42

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Solution

The fourth proportional to 61,435.64, 92,153.39 and 19,319.42 is: 28,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,435.64 : 92,153.39 = 19,319.42 : x
  2. Step 2: Convert to fraction form
    61,435.64/92,153.39 = 19,319.42/x
  3. Step 3: Cross multiply
    61,435.64x = 92,153.39 × 19,319.42
  4. Step 4: Simplify right side
    61,435.64x = 1,780,349,488.47
  5. Step 5: Solve for x
    x = 1,780,349,488.47/61,435.64
  6. Step 6: Final answer
    x = 28,979.10

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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.