Home / 42,090.77-63,138.94-14,009.69

Finding the Fourth Proportional to 42,090.77, 63,138.94 and 14,009.69

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Solution

The fourth proportional to 42,090.77, 63,138.94 and 14,009.69 is: 21,015.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,090.77 : 63,138.94 = 14,009.69 : x
  2. Step 2: Convert to fraction form
    42,090.77/63,138.94 = 14,009.69/x
  3. Step 3: Cross multiply
    42,090.77x = 63,138.94 × 14,009.69
  4. Step 4: Simplify right side
    42,090.77x = 884,557,099.15
  5. Step 5: Solve for x
    x = 884,557,099.15/42,090.77
  6. Step 6: Final answer
    x = 21,015.46

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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.