Home / 76,519.04-105,566.64-56,423.60

Finding the Fourth Proportional to 76,519.04, 105,566.64 and 56,423.60

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Solution

The fourth proportional to 76,519.04, 105,566.64 and 56,423.60 is: 77,842.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,519.04 : 105,566.64 = 56,423.60 : x
  2. Step 2: Convert to fraction form
    76,519.04/105,566.64 = 56,423.60/x
  3. Step 3: Cross multiply
    76,519.04x = 105,566.64 × 56,423.60
  4. Step 4: Simplify right side
    76,519.04x = 5,956,449,868.70
  5. Step 5: Solve for x
    x = 5,956,449,868.70/76,519.04
  6. Step 6: Final answer
    x = 77,842.72

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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.