Home / 85,009.51-127,459.59-40,635.28

Finding the Fourth Proportional to 85,009.51, 127,459.59 and 40,635.28

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Solution

The fourth proportional to 85,009.51, 127,459.59 and 40,635.28 is: 60,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,009.51 : 127,459.59 = 40,635.28 : x
  2. Step 2: Convert to fraction form
    85,009.51/127,459.59 = 40,635.28/x
  3. Step 3: Cross multiply
    85,009.51x = 127,459.59 × 40,635.28
  4. Step 4: Simplify right side
    85,009.51x = 5,179,356,128.34
  5. Step 5: Solve for x
    x = 5,179,356,128.34/85,009.51
  6. Step 6: Final answer
    x = 60,926.78

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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.