Home / 91,898.02-126,816.06-56,147.86

Finding the Fourth Proportional to 91,898.02, 126,816.06 and 56,147.86

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Solution

The fourth proportional to 91,898.02, 126,816.06 and 56,147.86 is: 77,482.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,898.02 : 126,816.06 = 56,147.86 : x
  2. Step 2: Convert to fraction form
    91,898.02/126,816.06 = 56,147.86/x
  3. Step 3: Cross multiply
    91,898.02x = 126,816.06 × 56,147.86
  4. Step 4: Simplify right side
    91,898.02x = 7,120,450,382.63
  5. Step 5: Solve for x
    x = 7,120,450,382.63/91,898.02
  6. Step 6: Final answer
    x = 77,482.09

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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.