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Finding the Fourth Proportional to 93,062.09, 128,427.05 and 57,230.93

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Solution

The fourth proportional to 93,062.09, 128,427.05 and 57,230.93 is: 78,979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,062.09 : 128,427.05 = 57,230.93 : x
  2. Step 2: Convert to fraction form
    93,062.09/128,427.05 = 57,230.93/x
  3. Step 3: Cross multiply
    93,062.09x = 128,427.05 × 57,230.93
  4. Step 4: Simplify right side
    93,062.09x = 7,349,999,508.66
  5. Step 5: Solve for x
    x = 7,349,999,508.66/93,062.09
  6. Step 6: Final answer
    x = 78,979.52

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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.