Home / 92,578.30-138,762.45-42,555.04

Finding the Fourth Proportional to 92,578.30, 138,762.45 and 42,555.04

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Solution

The fourth proportional to 92,578.30, 138,762.45 and 42,555.04 is: 63,784.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,578.30 : 138,762.45 = 42,555.04 : x
  2. Step 2: Convert to fraction form
    92,578.30/138,762.45 = 42,555.04/x
  3. Step 3: Cross multiply
    92,578.30x = 138,762.45 × 42,555.04
  4. Step 4: Simplify right side
    92,578.30x = 5,905,041,263.34
  5. Step 5: Solve for x
    x = 5,905,041,263.34/92,578.30
  6. Step 6: Final answer
    x = 63,784.29

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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.