Home / 78,285.02-117,431.62-59,594.36

Finding the Fourth Proportional to 78,285.02, 117,431.62 and 59,594.36

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Solution

The fourth proportional to 78,285.02, 117,431.62 and 59,594.36 is: 89,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,285.02 : 117,431.62 = 59,594.36 : x
  2. Step 2: Convert to fraction form
    78,285.02/117,431.62 = 59,594.36/x
  3. Step 3: Cross multiply
    78,285.02x = 117,431.62 × 59,594.36
  4. Step 4: Simplify right side
    78,285.02x = 6,998,261,501.52
  5. Step 5: Solve for x
    x = 6,998,261,501.52/78,285.02
  6. Step 6: Final answer
    x = 89,394.65

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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.