Home / 85,962.16-128,943.28-26,802.60

Finding the Fourth Proportional to 85,962.16, 128,943.28 and 26,802.60

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Solution

The fourth proportional to 85,962.16, 128,943.28 and 26,802.60 is: 40,203.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,962.16 : 128,943.28 = 26,802.60 : x
  2. Step 2: Convert to fraction form
    85,962.16/128,943.28 = 26,802.60/x
  3. Step 3: Cross multiply
    85,962.16x = 128,943.28 × 26,802.60
  4. Step 4: Simplify right side
    85,962.16x = 3,456,015,156.53
  5. Step 5: Solve for x
    x = 3,456,015,156.53/85,962.16
  6. Step 6: Final answer
    x = 40,203.91

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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.