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Finding the Fourth Proportional to 93,377.19, 128,859 and 53,090.09

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Solution

The fourth proportional to 93,377.19, 128,859 and 53,090.09 is: 73,263.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,377.19 : 128,859 = 53,090.09 : x
  2. Step 2: Convert to fraction form
    93,377.19/128,859 = 53,090.09/x
  3. Step 3: Cross multiply
    93,377.19x = 128,859 × 53,090.09
  4. Step 4: Simplify right side
    93,377.19x = 6,841,135,263.02
  5. Step 5: Solve for x
    x = 6,841,135,263.02/93,377.19
  6. Step 6: Final answer
    x = 73,263.45

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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.