Home / 99,040.08-136,684.65-56,590.38

Finding the Fourth Proportional to 99,040.08, 136,684.65 and 56,590.38

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Solution

The fourth proportional to 99,040.08, 136,684.65 and 56,590.38 is: 78,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,040.08 : 136,684.65 = 56,590.38 : x
  2. Step 2: Convert to fraction form
    99,040.08/136,684.65 = 56,590.38/x
  3. Step 3: Cross multiply
    99,040.08x = 136,684.65 × 56,590.38
  4. Step 4: Simplify right side
    99,040.08x = 7,735,036,283.67
  5. Step 5: Solve for x
    x = 7,735,036,283.67/99,040.08
  6. Step 6: Final answer
    x = 78,100.06

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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.