Home / 99,009.60-136,640.48-56,567.22

Finding the Fourth Proportional to 99,009.60, 136,640.48 and 56,567.22

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Solution

The fourth proportional to 99,009.60, 136,640.48 and 56,567.22 is: 78,066.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,009.60 : 136,640.48 = 56,567.22 : x
  2. Step 2: Convert to fraction form
    99,009.60/136,640.48 = 56,567.22/x
  3. Step 3: Cross multiply
    99,009.60x = 136,640.48 × 56,567.22
  4. Step 4: Simplify right side
    99,009.60x = 7,729,372,093.07
  5. Step 5: Solve for x
    x = 7,729,372,093.07/99,009.60
  6. Step 6: Final answer
    x = 78,066.90

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1.5x scale

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.