Home / 93,387.11-128,837.52-57,514.86

Finding the Fourth Proportional to 93,387.11, 128,837.52 and 57,514.86

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Solution

The fourth proportional to 93,387.11, 128,837.52 and 57,514.86 is: 79,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,387.11 : 128,837.52 = 57,514.86 : x
  2. Step 2: Convert to fraction form
    93,387.11/128,837.52 = 57,514.86/x
  3. Step 3: Cross multiply
    93,387.11x = 128,837.52 × 57,514.86
  4. Step 4: Simplify right side
    93,387.11x = 7,410,071,925.55
  5. Step 5: Solve for x
    x = 7,410,071,925.55/93,387.11
  6. Step 6: Final answer
    x = 79,347.91

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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.