Home / 99,962.61-137,949.32-56,941.48

Finding the Fourth Proportional to 99,962.61, 137,949.32 and 56,941.48

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Solution

The fourth proportional to 99,962.61, 137,949.32 and 56,941.48 is: 78,579.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,962.61 : 137,949.32 = 56,941.48 : x
  2. Step 2: Convert to fraction form
    99,962.61/137,949.32 = 56,941.48/x
  3. Step 3: Cross multiply
    99,962.61x = 137,949.32 × 56,941.48
  4. Step 4: Simplify right side
    99,962.61x = 7,855,038,996.68
  5. Step 5: Solve for x
    x = 7,855,038,996.68/99,962.61
  6. Step 6: Final answer
    x = 78,579.77

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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.