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Finding the Fourth Proportional to 63,000.40, 86,939.56 and 34,707.12

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Solution

The fourth proportional to 63,000.40, 86,939.56 and 34,707.12 is: 47,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,000.40 : 86,939.56 = 34,707.12 : x
  2. Step 2: Convert to fraction form
    63,000.40/86,939.56 = 34,707.12/x
  3. Step 3: Cross multiply
    63,000.40x = 86,939.56 × 34,707.12
  4. Step 4: Simplify right side
    63,000.40x = 3,017,421,741.67
  5. Step 5: Solve for x
    x = 3,017,421,741.67/63,000.40
  6. Step 6: Final answer
    x = 47,895.28

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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.