Home / 91,436.49-126,198.54-53,710.74

Finding the Fourth Proportional to 91,436.49, 126,198.54 and 53,710.74

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Solution

The fourth proportional to 91,436.49, 126,198.54 and 53,710.74 is: 74,130.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,436.49 : 126,198.54 = 53,710.74 : x
  2. Step 2: Convert to fraction form
    91,436.49/126,198.54 = 53,710.74/x
  3. Step 3: Cross multiply
    91,436.49x = 126,198.54 × 53,710.74
  4. Step 4: Simplify right side
    91,436.49x = 6,778,216,970.32
  5. Step 5: Solve for x
    x = 6,778,216,970.32/91,436.49
  6. Step 6: Final answer
    x = 74,130.33

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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.