Home / 78,360.24-108,120.24-46,539.84

Finding the Fourth Proportional to 78,360.24, 108,120.24 and 46,539.84

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Solution

The fourth proportional to 78,360.24, 108,120.24 and 46,539.84 is: 64,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,360.24 : 108,120.24 = 46,539.84 : x
  2. Step 2: Convert to fraction form
    78,360.24/108,120.24 = 46,539.84/x
  3. Step 3: Cross multiply
    78,360.24x = 108,120.24 × 46,539.84
  4. Step 4: Simplify right side
    78,360.24x = 5,031,898,670.36
  5. Step 5: Solve for x
    x = 5,031,898,670.36/78,360.24
  6. Step 6: Final answer
    x = 64,214.95

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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.