Home / 85,332.25-128,000.21-26,166.61

Finding the Fourth Proportional to 85,332.25, 128,000.21 and 26,166.61

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Solution

The fourth proportional to 85,332.25, 128,000.21 and 26,166.61 is: 39,250.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,332.25 : 128,000.21 = 26,166.61 : x
  2. Step 2: Convert to fraction form
    85,332.25/128,000.21 = 26,166.61/x
  3. Step 3: Cross multiply
    85,332.25x = 128,000.21 × 26,166.61
  4. Step 4: Simplify right side
    85,332.25x = 3,349,331,574.99
  5. Step 5: Solve for x
    x = 3,349,331,574.99/85,332.25
  6. Step 6: Final answer
    x = 39,250.48

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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.