Home / 78,639.30-118,033.02-52,362.36

Finding the Fourth Proportional to 78,639.30, 118,033.02 and 52,362.36

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Solution

The fourth proportional to 78,639.30, 118,033.02 and 52,362.36 is: 78,592.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,639.30 : 118,033.02 = 52,362.36 : x
  2. Step 2: Convert to fraction form
    78,639.30/118,033.02 = 52,362.36/x
  3. Step 3: Cross multiply
    78,639.30x = 118,033.02 × 52,362.36
  4. Step 4: Simplify right side
    78,639.30x = 6,180,487,485.13
  5. Step 5: Solve for x
    x = 6,180,487,485.13/78,639.30
  6. Step 6: Final answer
    x = 78,592.86

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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.