Home / 91,002.10-136,466.70-31,807.30

Finding the Fourth Proportional to 91,002.10, 136,466.70 and 31,807.30

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Solution

The fourth proportional to 91,002.10, 136,466.70 and 31,807.30 is: 47,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,002.10 : 136,466.70 = 31,807.30 : x
  2. Step 2: Convert to fraction form
    91,002.10/136,466.70 = 31,807.30/x
  3. Step 3: Cross multiply
    91,002.10x = 136,466.70 × 31,807.30
  4. Step 4: Simplify right side
    91,002.10x = 4,340,637,266.91
  5. Step 5: Solve for x
    x = 4,340,637,266.91/91,002.10
  6. Step 6: Final answer
    x = 47,698.21

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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.