Home / 76,038.12-104,923.40-42,042.02

Finding the Fourth Proportional to 76,038.12, 104,923.40 and 42,042.02

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Solution

The fourth proportional to 76,038.12, 104,923.40 and 42,042.02 is: 58,012.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,038.12 : 104,923.40 = 42,042.02 : x
  2. Step 2: Convert to fraction form
    76,038.12/104,923.40 = 42,042.02/x
  3. Step 3: Cross multiply
    76,038.12x = 104,923.40 × 42,042.02
  4. Step 4: Simplify right side
    76,038.12x = 4,411,190,946.44
  5. Step 5: Solve for x
    x = 4,411,190,946.44/76,038.12
  6. Step 6: Final answer
    x = 58,012.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.