Home / 86,543.74-119,336.21-56,272.92

Finding the Fourth Proportional to 86,543.74, 119,336.21 and 56,272.92

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Solution

The fourth proportional to 86,543.74, 119,336.21 and 56,272.92 is: 77,595.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,543.74 : 119,336.21 = 56,272.92 : x
  2. Step 2: Convert to fraction form
    86,543.74/119,336.21 = 56,272.92/x
  3. Step 3: Cross multiply
    86,543.74x = 119,336.21 × 56,272.92
  4. Step 4: Simplify right side
    86,543.74x = 6,715,397,121.83
  5. Step 5: Solve for x
    x = 6,715,397,121.83/86,543.74
  6. Step 6: Final answer
    x = 77,595.41

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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.