Home / 73,215.34-109,781.40-28,818.03

Finding the Fourth Proportional to 73,215.34, 109,781.40 and 28,818.03

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Solution

The fourth proportional to 73,215.34, 109,781.40 and 28,818.03 is: 43,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,215.34 : 109,781.40 = 28,818.03 : x
  2. Step 2: Convert to fraction form
    73,215.34/109,781.40 = 28,818.03/x
  3. Step 3: Cross multiply
    73,215.34x = 109,781.40 × 28,818.03
  4. Step 4: Simplify right side
    73,215.34x = 3,163,683,678.64
  5. Step 5: Solve for x
    x = 3,163,683,678.64/73,215.34
  6. Step 6: Final answer
    x = 43,210.67

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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.