Home / 92,045.23-138,068.18-28,004

Finding the Fourth Proportional to 92,045.23, 138,068.18 and 28,004

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Solution

The fourth proportional to 92,045.23, 138,068.18 and 28,004 is: 42,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,045.23 : 138,068.18 = 28,004 : x
  2. Step 2: Convert to fraction form
    92,045.23/138,068.18 = 28,004/x
  3. Step 3: Cross multiply
    92,045.23x = 138,068.18 × 28,004
  4. Step 4: Simplify right side
    92,045.23x = 3,866,461,312.72
  5. Step 5: Solve for x
    x = 3,866,461,312.72/92,045.23
  6. Step 6: Final answer
    x = 42,006.10

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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.