Home / 101,030.24-139,422.70-55,710.02

Finding the Fourth Proportional to 101,030.24, 139,422.70 and 55,710.02

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Solution

The fourth proportional to 101,030.24, 139,422.70 and 55,710.02 is: 76,880.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,030.24 : 139,422.70 = 55,710.02 : x
  2. Step 2: Convert to fraction form
    101,030.24/139,422.70 = 55,710.02/x
  3. Step 3: Cross multiply
    101,030.24x = 139,422.70 × 55,710.02
  4. Step 4: Simplify right side
    101,030.24x = 7,767,241,405.45
  5. Step 5: Solve for x
    x = 7,767,241,405.45/101,030.24
  6. Step 6: Final answer
    x = 76,880.36

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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.