Home / 99,864.32-137,794.50-56,841.26

Finding the Fourth Proportional to 99,864.32, 137,794.50 and 56,841.26

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Solution

The fourth proportional to 99,864.32, 137,794.50 and 56,841.26 is: 78,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,864.32 : 137,794.50 = 56,841.26 : x
  2. Step 2: Convert to fraction form
    99,864.32/137,794.50 = 56,841.26/x
  3. Step 3: Cross multiply
    99,864.32x = 137,794.50 × 56,841.26
  4. Step 4: Simplify right side
    99,864.32x = 7,832,412,312.10
  5. Step 5: Solve for x
    x = 7,832,412,312.10/99,864.32
  6. Step 6: Final answer
    x = 78,430.54

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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.