Home / 98,965.86-136,572.39-53,643.66

Finding the Fourth Proportional to 98,965.86, 136,572.39 and 53,643.66

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Solution

The fourth proportional to 98,965.86, 136,572.39 and 53,643.66 is: 74,027.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,965.86 : 136,572.39 = 53,643.66 : x
  2. Step 2: Convert to fraction form
    98,965.86/136,572.39 = 53,643.66/x
  3. Step 3: Cross multiply
    98,965.86x = 136,572.39 × 53,643.66
  4. Step 4: Simplify right side
    98,965.86x = 7,326,242,854.55
  5. Step 5: Solve for x
    x = 7,326,242,854.55/98,965.86
  6. Step 6: Final answer
    x = 74,027.98

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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.