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Finding the Fourth Proportional to 92,950.38, 128,271.78 and 50,509.08

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Solution

The fourth proportional to 92,950.38, 128,271.78 and 50,509.08 is: 69,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,950.38 : 128,271.78 = 50,509.08 : x
  2. Step 2: Convert to fraction form
    92,950.38/128,271.78 = 50,509.08/x
  3. Step 3: Cross multiply
    92,950.38x = 128,271.78 × 50,509.08
  4. Step 4: Simplify right side
    92,950.38x = 6,478,889,597.76
  5. Step 5: Solve for x
    x = 6,478,889,597.76/92,950.38
  6. Step 6: Final answer
    x = 69,702.67

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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.