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Finding the Fourth Proportional to 60,992.51, 91,466.01 and 21,000.20

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Solution

The fourth proportional to 60,992.51, 91,466.01 and 21,000.20 is: 31,492.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,992.51 : 91,466.01 = 21,000.20 : x
  2. Step 2: Convert to fraction form
    60,992.51/91,466.01 = 21,000.20/x
  3. Step 3: Cross multiply
    60,992.51x = 91,466.01 × 21,000.20
  4. Step 4: Simplify right side
    60,992.51x = 1,920,804,045.87
  5. Step 5: Solve for x
    x = 1,920,804,045.87/60,992.51
  6. Step 6: Final answer
    x = 31,492.46

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1.5x scale

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.