Home / 87,995.05-121,533.40-59,651.53

Finding the Fourth Proportional to 87,995.05, 121,533.40 and 59,651.53

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Solution

The fourth proportional to 87,995.05, 121,533.40 and 59,651.53 is: 82,387.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,995.05 : 121,533.40 = 59,651.53 : x
  2. Step 2: Convert to fraction form
    87,995.05/121,533.40 = 59,651.53/x
  3. Step 3: Cross multiply
    87,995.05x = 121,533.40 × 59,651.53
  4. Step 4: Simplify right side
    87,995.05x = 7,249,652,803.14
  5. Step 5: Solve for x
    x = 7,249,652,803.14/87,995.05
  6. Step 6: Final answer
    x = 82,387.05

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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.