Home / 85,644.02-118,230.18-57,011.42

Finding the Fourth Proportional to 85,644.02, 118,230.18 and 57,011.42

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Solution

The fourth proportional to 85,644.02, 118,230.18 and 57,011.42 is: 78,703.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,644.02 : 118,230.18 = 57,011.42 : x
  2. Step 2: Convert to fraction form
    85,644.02/118,230.18 = 57,011.42/x
  3. Step 3: Cross multiply
    85,644.02x = 118,230.18 × 57,011.42
  4. Step 4: Simplify right side
    85,644.02x = 6,740,470,448.66
  5. Step 5: Solve for x
    x = 6,740,470,448.66/85,644.02
  6. Step 6: Final answer
    x = 78,703.34

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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.