Home / 99,924.17-137,894.32-56,312.66

Finding the Fourth Proportional to 99,924.17, 137,894.32 and 56,312.66

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Solution

The fourth proportional to 99,924.17, 137,894.32 and 56,312.66 is: 77,710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,924.17 : 137,894.32 = 56,312.66 : x
  2. Step 2: Convert to fraction form
    99,924.17/137,894.32 = 56,312.66/x
  3. Step 3: Cross multiply
    99,924.17x = 137,894.32 × 56,312.66
  4. Step 4: Simplify right side
    99,924.17x = 7,765,194,987.06
  5. Step 5: Solve for x
    x = 7,765,194,987.06/99,924.17
  6. Step 6: Final answer
    x = 77,710.88

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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.