Home / 76,211.52-105,172.32-44,402.40

Finding the Fourth Proportional to 76,211.52, 105,172.32 and 44,402.40

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Solution

The fourth proportional to 76,211.52, 105,172.32 and 44,402.40 is: 61,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,211.52 : 105,172.32 = 44,402.40 : x
  2. Step 2: Convert to fraction form
    76,211.52/105,172.32 = 44,402.40/x
  3. Step 3: Cross multiply
    76,211.52x = 105,172.32 × 44,402.40
  4. Step 4: Simplify right side
    76,211.52x = 4,669,903,421.57
  5. Step 5: Solve for x
    x = 4,669,903,421.57/76,211.52
  6. Step 6: Final answer
    x = 61,275.56

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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.