Home / 87,030.45-130,448.48-49,608.45

Finding the Fourth Proportional to 87,030.45, 130,448.48 and 49,608.45

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Solution

The fourth proportional to 87,030.45, 130,448.48 and 49,608.45 is: 74,357.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,030.45 : 130,448.48 = 49,608.45 : x
  2. Step 2: Convert to fraction form
    87,030.45/130,448.48 = 49,608.45/x
  3. Step 3: Cross multiply
    87,030.45x = 130,448.48 × 49,608.45
  4. Step 4: Simplify right side
    87,030.45x = 6,471,346,649.61
  5. Step 5: Solve for x
    x = 6,471,346,649.61/87,030.45
  6. Step 6: Final answer
    x = 74,357.27

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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.