Home / 85,701.35-128,600.63-46,257.59

Finding the Fourth Proportional to 85,701.35, 128,600.63 and 46,257.59

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Solution

The fourth proportional to 85,701.35, 128,600.63 and 46,257.59 is: 69,412.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,701.35 : 128,600.63 = 46,257.59 : x
  2. Step 2: Convert to fraction form
    85,701.35/128,600.63 = 46,257.59/x
  3. Step 3: Cross multiply
    85,701.35x = 128,600.63 × 46,257.59
  4. Step 4: Simplify right side
    85,701.35x = 5,948,754,341.99
  5. Step 5: Solve for x
    x = 5,948,754,341.99/85,701.35
  6. Step 6: Final answer
    x = 69,412.61

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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.