Home / 67,420.16-101,153.28-57,651.20

Finding the Fourth Proportional to 67,420.16, 101,153.28 and 57,651.20

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Solution

The fourth proportional to 67,420.16, 101,153.28 and 57,651.20 is: 86,496.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,420.16 : 101,153.28 = 57,651.20 : x
  2. Step 2: Convert to fraction form
    67,420.16/101,153.28 = 57,651.20/x
  3. Step 3: Cross multiply
    67,420.16x = 101,153.28 × 57,651.20
  4. Step 4: Simplify right side
    67,420.16x = 5,831,607,975.94
  5. Step 5: Solve for x
    x = 5,831,607,975.94/67,420.16
  6. Step 6: Final answer
    x = 86,496.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.