Home / 76,543.70-105,666.18-51,093.06

Finding the Fourth Proportional to 76,543.70, 105,666.18 and 51,093.06

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Solution

The fourth proportional to 76,543.70, 105,666.18 and 51,093.06 is: 70,532.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,543.70 : 105,666.18 = 51,093.06 : x
  2. Step 2: Convert to fraction form
    76,543.70/105,666.18 = 51,093.06/x
  3. Step 3: Cross multiply
    76,543.70x = 105,666.18 × 51,093.06
  4. Step 4: Simplify right side
    76,543.70x = 5,398,808,474.71
  5. Step 5: Solve for x
    x = 5,398,808,474.71/76,543.70
  6. Step 6: Final answer
    x = 70,532.37

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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.