Home / 85,487.52-128,260.44-46,048.62

Finding the Fourth Proportional to 85,487.52, 128,260.44 and 46,048.62

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Solution

The fourth proportional to 85,487.52, 128,260.44 and 46,048.62 is: 69,088.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,487.52 : 128,260.44 = 46,048.62 : x
  2. Step 2: Convert to fraction form
    85,487.52/128,260.44 = 46,048.62/x
  3. Step 3: Cross multiply
    85,487.52x = 128,260.44 × 46,048.62
  4. Step 4: Simplify right side
    85,487.52x = 5,906,216,262.59
  5. Step 5: Solve for x
    x = 5,906,216,262.59/85,487.52
  6. Step 6: Final answer
    x = 69,088.64

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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.