Home / 98,415.02-135,809.76-55,396.90

Finding the Fourth Proportional to 98,415.02, 135,809.76 and 55,396.90

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Solution

The fourth proportional to 98,415.02, 135,809.76 and 55,396.90 is: 76,446.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415.02 : 135,809.76 = 55,396.90 : x
  2. Step 2: Convert to fraction form
    98,415.02/135,809.76 = 55,396.90/x
  3. Step 3: Cross multiply
    98,415.02x = 135,809.76 × 55,396.90
  4. Step 4: Simplify right side
    98,415.02x = 7,523,439,693.74
  5. Step 5: Solve for x
    x = 7,523,439,693.74/98,415.02
  6. Step 6: Final answer
    x = 76,446.05

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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.