Home / 64,289.57-96,435.63-19,312.70

Finding the Fourth Proportional to 64,289.57, 96,435.63 and 19,312.70

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Solution

The fourth proportional to 64,289.57, 96,435.63 and 19,312.70 is: 28,969.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,289.57 : 96,435.63 = 19,312.70 : x
  2. Step 2: Convert to fraction form
    64,289.57/96,435.63 = 19,312.70/x
  3. Step 3: Cross multiply
    64,289.57x = 96,435.63 × 19,312.70
  4. Step 4: Simplify right side
    64,289.57x = 1,862,431,909.32
  5. Step 5: Solve for x
    x = 1,862,431,909.32/64,289.57
  6. Step 6: Final answer
    x = 28,969.43

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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.