Home / 91,985.96-126,941.76-55,686.92

Finding the Fourth Proportional to 91,985.96, 126,941.76 and 55,686.92

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Solution

The fourth proportional to 91,985.96, 126,941.76 and 55,686.92 is: 76,848.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,985.96 : 126,941.76 = 55,686.92 : x
  2. Step 2: Convert to fraction form
    91,985.96/126,941.76 = 55,686.92/x
  3. Step 3: Cross multiply
    91,985.96x = 126,941.76 × 55,686.92
  4. Step 4: Simplify right side
    91,985.96x = 7,068,995,633.78
  5. Step 5: Solve for x
    x = 7,068,995,633.78/91,985.96
  6. Step 6: Final answer
    x = 76,848.64

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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.