Home / 64,316.16-88,730.64-38,815.74

Finding the Fourth Proportional to 64,316.16, 88,730.64 and 38,815.74

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Solution

The fourth proportional to 64,316.16, 88,730.64 and 38,815.74 is: 53,550.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,316.16 : 88,730.64 = 38,815.74 : x
  2. Step 2: Convert to fraction form
    64,316.16/88,730.64 = 38,815.74/x
  3. Step 3: Cross multiply
    64,316.16x = 88,730.64 × 38,815.74
  4. Step 4: Simplify right side
    64,316.16x = 3,444,145,452.27
  5. Step 5: Solve for x
    x = 3,444,145,452.27/64,316.16
  6. Step 6: Final answer
    x = 53,550.23

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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.