Home / 91,436.80-126,194.40-51,152.80

Finding the Fourth Proportional to 91,436.80, 126,194.40 and 51,152.80

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Solution

The fourth proportional to 91,436.80, 126,194.40 and 51,152.80 is: 70,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,436.80 : 126,194.40 = 51,152.80 : x
  2. Step 2: Convert to fraction form
    91,436.80/126,194.40 = 51,152.80/x
  3. Step 3: Cross multiply
    91,436.80x = 126,194.40 × 51,152.80
  4. Step 4: Simplify right side
    91,436.80x = 6,455,196,904.32
  5. Step 5: Solve for x
    x = 6,455,196,904.32/91,436.80
  6. Step 6: Final answer
    x = 70,597.36

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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.