Home / 93,121.29-128,503.40-50,679.72

Finding the Fourth Proportional to 93,121.29, 128,503.40 and 50,679.72

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Solution

The fourth proportional to 93,121.29, 128,503.40 and 50,679.72 is: 69,935.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,121.29 : 128,503.40 = 50,679.72 : x
  2. Step 2: Convert to fraction form
    93,121.29/128,503.40 = 50,679.72/x
  3. Step 3: Cross multiply
    93,121.29x = 128,503.40 × 50,679.72
  4. Step 4: Simplify right side
    93,121.29x = 6,512,516,077.65
  5. Step 5: Solve for x
    x = 6,512,516,077.65/93,121.29
  6. Step 6: Final answer
    x = 69,935.84

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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.