Home / 99,015.76-148,507.94-31,539.05

Finding the Fourth Proportional to 99,015.76, 148,507.94 and 31,539.05

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Solution

The fourth proportional to 99,015.76, 148,507.94 and 31,539.05 is: 47,303.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,015.76 : 148,507.94 = 31,539.05 : x
  2. Step 2: Convert to fraction form
    99,015.76/148,507.94 = 31,539.05/x
  3. Step 3: Cross multiply
    99,015.76x = 148,507.94 × 31,539.05
  4. Step 4: Simplify right side
    99,015.76x = 4,683,799,238.27
  5. Step 5: Solve for x
    x = 4,683,799,238.27/99,015.76
  6. Step 6: Final answer
    x = 47,303.57

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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.