Home / 91,777.23-126,688.59-65,059.38

Finding the Fourth Proportional to 91,777.23, 126,688.59 and 65,059.38

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Solution

The fourth proportional to 91,777.23, 126,688.59 and 65,059.38 is: 89,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,777.23 : 126,688.59 = 65,059.38 : x
  2. Step 2: Convert to fraction form
    91,777.23/126,688.59 = 65,059.38/x
  3. Step 3: Cross multiply
    91,777.23x = 126,688.59 × 65,059.38
  4. Step 4: Simplify right side
    91,777.23x = 8,242,281,118.47
  5. Step 5: Solve for x
    x = 8,242,281,118.47/91,777.23
  6. Step 6: Final answer
    x = 89,807.47

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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.