Home / 85,735.02-118,355.34-57,102.30

Finding the Fourth Proportional to 85,735.02, 118,355.34 and 57,102.30

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Solution

The fourth proportional to 85,735.02, 118,355.34 and 57,102.30 is: 78,828.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,735.02 : 118,355.34 = 57,102.30 : x
  2. Step 2: Convert to fraction form
    85,735.02/118,355.34 = 57,102.30/x
  3. Step 3: Cross multiply
    85,735.02x = 118,355.34 × 57,102.30
  4. Step 4: Simplify right side
    85,735.02x = 6,758,362,131.28
  5. Step 5: Solve for x
    x = 6,758,362,131.28/85,735.02
  6. Step 6: Final answer
    x = 78,828.49

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1.5x scale

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.