Home / 99,014.10-136,646.70-56,571.72

Finding the Fourth Proportional to 99,014.10, 136,646.70 and 56,571.72

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Solution

The fourth proportional to 99,014.10, 136,646.70 and 56,571.72 is: 78,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,014.10 : 136,646.70 = 56,571.72 : x
  2. Step 2: Convert to fraction form
    99,014.10/136,646.70 = 56,571.72/x
  3. Step 3: Cross multiply
    99,014.10x = 136,646.70 × 56,571.72
  4. Step 4: Simplify right side
    99,014.10x = 7,730,338,851.32
  5. Step 5: Solve for x
    x = 7,730,338,851.32/99,014.10
  6. Step 6: Final answer
    x = 78,073.11

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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.