Home / 42,872.04-64,317.45-14,407.98

Finding the Fourth Proportional to 42,872.04, 64,317.45 and 14,407.98

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Solution

The fourth proportional to 42,872.04, 64,317.45 and 14,407.98 is: 21,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,872.04 : 64,317.45 = 14,407.98 : x
  2. Step 2: Convert to fraction form
    42,872.04/64,317.45 = 14,407.98/x
  3. Step 3: Cross multiply
    42,872.04x = 64,317.45 × 14,407.98
  4. Step 4: Simplify right side
    42,872.04x = 926,684,533.25
  5. Step 5: Solve for x
    x = 926,684,533.25/42,872.04
  6. Step 6: Final answer
    x = 21,615.13

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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.