Home / 42,957.36-64,435.92-11,792.64

Finding the Fourth Proportional to 42,957.36, 64,435.92 and 11,792.64

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Solution

The fourth proportional to 42,957.36, 64,435.92 and 11,792.64 is: 17,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,957.36 : 64,435.92 = 11,792.64 : x
  2. Step 2: Convert to fraction form
    42,957.36/64,435.92 = 11,792.64/x
  3. Step 3: Cross multiply
    42,957.36x = 64,435.92 × 11,792.64
  4. Step 4: Simplify right side
    42,957.36x = 759,869,607.63
  5. Step 5: Solve for x
    x = 759,869,607.63/42,957.36
  6. Step 6: Final answer
    x = 17,688.93

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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.