Home / 78,871.08-118,323.63-22,710.81

Finding the Fourth Proportional to 78,871.08, 118,323.63 and 22,710.81

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Solution

The fourth proportional to 78,871.08, 118,323.63 and 22,710.81 is: 34,071.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,871.08 : 118,323.63 = 22,710.81 : x
  2. Step 2: Convert to fraction form
    78,871.08/118,323.63 = 22,710.81/x
  3. Step 3: Cross multiply
    78,871.08x = 118,323.63 × 22,710.81
  4. Step 4: Simplify right side
    78,871.08x = 2,687,225,479.44
  5. Step 5: Solve for x
    x = 2,687,225,479.44/78,871.08
  6. Step 6: Final answer
    x = 34,071.11

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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.