Home / 76,655.04-105,754.38-56,560.16

Finding the Fourth Proportional to 76,655.04, 105,754.38 and 56,560.16

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Solution

The fourth proportional to 76,655.04, 105,754.38 and 56,560.16 is: 78,031.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,655.04 : 105,754.38 = 56,560.16 : x
  2. Step 2: Convert to fraction form
    76,655.04/105,754.38 = 56,560.16/x
  3. Step 3: Cross multiply
    76,655.04x = 105,754.38 × 56,560.16
  4. Step 4: Simplify right side
    76,655.04x = 5,981,484,124.73
  5. Step 5: Solve for x
    x = 5,981,484,124.73/76,655.04
  6. Step 6: Final answer
    x = 78,031.19

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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.