Home / 81,648.24-112,681.08-45,840.60

Finding the Fourth Proportional to 81,648.24, 112,681.08 and 45,840.60

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Solution

The fourth proportional to 81,648.24, 112,681.08 and 45,840.60 is: 63,263.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648.24 : 112,681.08 = 45,840.60 : x
  2. Step 2: Convert to fraction form
    81,648.24/112,681.08 = 45,840.60/x
  3. Step 3: Cross multiply
    81,648.24x = 112,681.08 × 45,840.60
  4. Step 4: Simplify right side
    81,648.24x = 5,165,368,315.85
  5. Step 5: Solve for x
    x = 5,165,368,315.85/81,648.24
  6. Step 6: Final answer
    x = 63,263.68

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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.