Home / 42,737.76-64,128.51-19,361.16

Finding the Fourth Proportional to 42,737.76, 64,128.51 and 19,361.16

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Solution

The fourth proportional to 42,737.76, 64,128.51 and 19,361.16 is: 29,051.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,737.76 : 64,128.51 = 19,361.16 : x
  2. Step 2: Convert to fraction form
    42,737.76/64,128.51 = 19,361.16/x
  3. Step 3: Cross multiply
    42,737.76x = 64,128.51 × 19,361.16
  4. Step 4: Simplify right side
    42,737.76x = 1,241,602,342.67
  5. Step 5: Solve for x
    x = 1,241,602,342.67/42,737.76
  6. Step 6: Final answer
    x = 29,051.65

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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.