Home / 91,998.32-126,955.56-51,159.68

Finding the Fourth Proportional to 91,998.32, 126,955.56 and 51,159.68

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Solution

The fourth proportional to 91,998.32, 126,955.56 and 51,159.68 is: 70,599.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,998.32 : 126,955.56 = 51,159.68 : x
  2. Step 2: Convert to fraction form
    91,998.32/126,955.56 = 51,159.68/x
  3. Step 3: Cross multiply
    91,998.32x = 126,955.56 × 51,159.68
  4. Step 4: Simplify right side
    91,998.32x = 6,495,005,823.82
  5. Step 5: Solve for x
    x = 6,495,005,823.82/91,998.32
  6. Step 6: Final answer
    x = 70,599.18

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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.