Home / 93,031.16-128,379.13-52,747.65

Finding the Fourth Proportional to 93,031.16, 128,379.13 and 52,747.65

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Solution

The fourth proportional to 93,031.16, 128,379.13 and 52,747.65 is: 72,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,031.16 : 128,379.13 = 52,747.65 : x
  2. Step 2: Convert to fraction form
    93,031.16/128,379.13 = 52,747.65/x
  3. Step 3: Cross multiply
    93,031.16x = 128,379.13 × 52,747.65
  4. Step 4: Simplify right side
    93,031.16x = 6,771,697,284.68
  5. Step 5: Solve for x
    x = 6,771,697,284.68/93,031.16
  6. Step 6: Final answer
    x = 72,789.56

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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.