Home / 91,271.07-136,911.51-28,946.43

Finding the Fourth Proportional to 91,271.07, 136,911.51 and 28,946.43

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Solution

The fourth proportional to 91,271.07, 136,911.51 and 28,946.43 is: 43,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,271.07 : 136,911.51 = 28,946.43 : x
  2. Step 2: Convert to fraction form
    91,271.07/136,911.51 = 28,946.43/x
  3. Step 3: Cross multiply
    91,271.07x = 136,911.51 × 28,946.43
  4. Step 4: Simplify right side
    91,271.07x = 3,963,099,440.41
  5. Step 5: Solve for x
    x = 3,963,099,440.41/91,271.07
  6. Step 6: Final answer
    x = 43,421.20

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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.