Home / 92,985.66-139,442.58-39,643.92

Finding the Fourth Proportional to 92,985.66, 139,442.58 and 39,643.92

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Solution

The fourth proportional to 92,985.66, 139,442.58 and 39,643.92 is: 59,450.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,985.66 : 139,442.58 = 39,643.92 : x
  2. Step 2: Convert to fraction form
    92,985.66/139,442.58 = 39,643.92/x
  3. Step 3: Cross multiply
    92,985.66x = 139,442.58 × 39,643.92
  4. Step 4: Simplify right side
    92,985.66x = 5,528,050,486.11
  5. Step 5: Solve for x
    x = 5,528,050,486.11/92,985.66
  6. Step 6: Final answer
    x = 59,450.57

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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.