Home / 87,260.28-120,415.89-53,325.51

Finding the Fourth Proportional to 87,260.28, 120,415.89 and 53,325.51

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Solution

The fourth proportional to 87,260.28, 120,415.89 and 53,325.51 is: 73,587.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,260.28 : 120,415.89 = 53,325.51 : x
  2. Step 2: Convert to fraction form
    87,260.28/120,415.89 = 53,325.51/x
  3. Step 3: Cross multiply
    87,260.28x = 120,415.89 × 53,325.51
  4. Step 4: Simplify right side
    87,260.28x = 6,421,238,746.35
  5. Step 5: Solve for x
    x = 6,421,238,746.35/87,260.28
  6. Step 6: Final answer
    x = 73,587.19

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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.