Home / 72,925.32-109,384.31-28,560.20

Finding the Fourth Proportional to 72,925.32, 109,384.31 and 28,560.20

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Solution

The fourth proportional to 72,925.32, 109,384.31 and 28,560.20 is: 42,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,925.32 : 109,384.31 = 28,560.20 : x
  2. Step 2: Convert to fraction form
    72,925.32/109,384.31 = 28,560.20/x
  3. Step 3: Cross multiply
    72,925.32x = 109,384.31 × 28,560.20
  4. Step 4: Simplify right side
    72,925.32x = 3,124,037,080.74
  5. Step 5: Solve for x
    x = 3,124,037,080.74/72,925.32
  6. Step 6: Final answer
    x = 42,838.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.