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Finding the Fourth Proportional to 63,698.71, 87,889.93 and 38,547.67

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Solution

The fourth proportional to 63,698.71, 87,889.93 and 38,547.67 is: 53,187.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,698.71 : 87,889.93 = 38,547.67 : x
  2. Step 2: Convert to fraction form
    63,698.71/87,889.93 = 38,547.67/x
  3. Step 3: Cross multiply
    63,698.71x = 87,889.93 × 38,547.67
  4. Step 4: Simplify right side
    63,698.71x = 3,387,952,017.96
  5. Step 5: Solve for x
    x = 3,387,952,017.96/63,698.71
  6. Step 6: Final answer
    x = 53,187.14

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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.