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Finding the Fourth Proportional to 63,117.93, 94,686.47 and 18,739.15

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Solution

The fourth proportional to 63,117.93, 94,686.47 and 18,739.15 is: 28,111.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,117.93 : 94,686.47 = 18,739.15 : x
  2. Step 2: Convert to fraction form
    63,117.93/94,686.47 = 18,739.15/x
  3. Step 3: Cross multiply
    63,117.93x = 94,686.47 × 18,739.15
  4. Step 4: Simplify right side
    63,117.93x = 1,774,343,704.16
  5. Step 5: Solve for x
    x = 1,774,343,704.16/63,117.93
  6. Step 6: Final answer
    x = 28,111.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.