Home / 89,985.70-134,964.66-30,015.23

Finding the Fourth Proportional to 89,985.70, 134,964.66 and 30,015.23

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Solution

The fourth proportional to 89,985.70, 134,964.66 and 30,015.23 is: 45,018.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,985.70 : 134,964.66 = 30,015.23 : x
  2. Step 2: Convert to fraction form
    89,985.70/134,964.66 = 30,015.23/x
  3. Step 3: Cross multiply
    89,985.70x = 134,964.66 × 30,015.23
  4. Step 4: Simplify right side
    89,985.70x = 4,050,994,749.51
  5. Step 5: Solve for x
    x = 4,050,994,749.51/89,985.70
  6. Step 6: Final answer
    x = 45,018.21

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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.