Home / 90,435.02-124,537.10-84,658.64

Finding the Fourth Proportional to 90,435.02, 124,537.10 and 84,658.64

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Solution

The fourth proportional to 90,435.02, 124,537.10 and 84,658.64 is: 116,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,435.02 : 124,537.10 = 84,658.64 : x
  2. Step 2: Convert to fraction form
    90,435.02/124,537.10 = 84,658.64/x
  3. Step 3: Cross multiply
    90,435.02x = 124,537.10 × 84,658.64
  4. Step 4: Simplify right side
    90,435.02x = 10,543,140,469.57
  5. Step 5: Solve for x
    x = 10,543,140,469.57/90,435.02
  6. Step 6: Final answer
    x = 116,582.50

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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.