Home / 78,991.02-118,381.74-34,569.41

Finding the Fourth Proportional to 78,991.02, 118,381.74 and 34,569.41

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Solution

The fourth proportional to 78,991.02, 118,381.74 and 34,569.41 is: 51,808.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,991.02 : 118,381.74 = 34,569.41 : x
  2. Step 2: Convert to fraction form
    78,991.02/118,381.74 = 34,569.41/x
  3. Step 3: Cross multiply
    78,991.02x = 118,381.74 × 34,569.41
  4. Step 4: Simplify right side
    78,991.02x = 4,092,386,758.60
  5. Step 5: Solve for x
    x = 4,092,386,758.60/78,991.02
  6. Step 6: Final answer
    x = 51,808.25

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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.