Home / 78,777.02-108,721.62-44,790.63

Finding the Fourth Proportional to 78,777.02, 108,721.62 and 44,790.63

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Solution

The fourth proportional to 78,777.02, 108,721.62 and 44,790.63 is: 61,816.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,777.02 : 108,721.62 = 44,790.63 : x
  2. Step 2: Convert to fraction form
    78,777.02/108,721.62 = 44,790.63/x
  3. Step 3: Cross multiply
    78,777.02x = 108,721.62 × 44,790.63
  4. Step 4: Simplify right side
    78,777.02x = 4,869,709,854.42
  5. Step 5: Solve for x
    x = 4,869,709,854.42/78,777.02
  6. Step 6: Final answer
    x = 61,816.38

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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.