Home / 65,239.81-90,029.40-38,384.05

Finding the Fourth Proportional to 65,239.81, 90,029.40 and 38,384.05

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Solution

The fourth proportional to 65,239.81, 90,029.40 and 38,384.05 is: 52,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,239.81 : 90,029.40 = 38,384.05 : x
  2. Step 2: Convert to fraction form
    65,239.81/90,029.40 = 38,384.05/x
  3. Step 3: Cross multiply
    65,239.81x = 90,029.40 × 38,384.05
  4. Step 4: Simplify right side
    65,239.81x = 3,455,692,991.07
  5. Step 5: Solve for x
    x = 3,455,692,991.07/65,239.81
  6. Step 6: Final answer
    x = 52,969.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.