Home / 42,495.36-63,742.48-19,105.28

Finding the Fourth Proportional to 42,495.36, 63,742.48 and 19,105.28

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Solution

The fourth proportional to 42,495.36, 63,742.48 and 19,105.28 is: 28,657.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,495.36 : 63,742.48 = 19,105.28 : x
  2. Step 2: Convert to fraction form
    42,495.36/63,742.48 = 19,105.28/x
  3. Step 3: Cross multiply
    42,495.36x = 63,742.48 × 19,105.28
  4. Step 4: Simplify right side
    42,495.36x = 1,217,817,928.29
  5. Step 5: Solve for x
    x = 1,217,817,928.29/42,495.36
  6. Step 6: Final answer
    x = 28,657.67

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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.