Home / 91,977.08-126,929.48-56,162.12

Finding the Fourth Proportional to 91,977.08, 126,929.48 and 56,162.12

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Solution

The fourth proportional to 91,977.08, 126,929.48 and 56,162.12 is: 77,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,977.08 : 126,929.48 = 56,162.12 : x
  2. Step 2: Convert to fraction form
    91,977.08/126,929.48 = 56,162.12/x
  3. Step 3: Cross multiply
    91,977.08x = 126,929.48 × 56,162.12
  4. Step 4: Simplify right side
    91,977.08x = 7,128,628,687.30
  5. Step 5: Solve for x
    x = 7,128,628,687.30/91,977.08
  6. Step 6: Final answer
    x = 77,504.40

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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.