Home / 87,210.32-120,417.80-67,035.28

Finding the Fourth Proportional to 87,210.32, 120,417.80 and 67,035.28

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Solution

The fourth proportional to 87,210.32, 120,417.80 and 67,035.28 is: 92,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,210.32 : 120,417.80 = 67,035.28 : x
  2. Step 2: Convert to fraction form
    87,210.32/120,417.80 = 67,035.28/x
  3. Step 3: Cross multiply
    87,210.32x = 120,417.80 × 67,035.28
  4. Step 4: Simplify right side
    87,210.32x = 8,072,240,939.98
  5. Step 5: Solve for x
    x = 8,072,240,939.98/87,210.32
  6. Step 6: Final answer
    x = 92,560.62

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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.