Home / 85,824.81-128,772.75-46,335.49

Finding the Fourth Proportional to 85,824.81, 128,772.75 and 46,335.49

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Solution

The fourth proportional to 85,824.81, 128,772.75 and 46,335.49 is: 69,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824.81 : 128,772.75 = 46,335.49 : x
  2. Step 2: Convert to fraction form
    85,824.81/128,772.75 = 46,335.49/x
  3. Step 3: Cross multiply
    85,824.81x = 128,772.75 × 46,335.49
  4. Step 4: Simplify right side
    85,824.81x = 5,966,748,469.90
  5. Step 5: Solve for x
    x = 5,966,748,469.90/85,824.81
  6. Step 6: Final answer
    x = 69,522.42

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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.