Home / 92,420.16-138,674.40-48,038.72

Finding the Fourth Proportional to 92,420.16, 138,674.40 and 48,038.72

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Solution

The fourth proportional to 92,420.16, 138,674.40 and 48,038.72 is: 72,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,420.16 : 138,674.40 = 48,038.72 : x
  2. Step 2: Convert to fraction form
    92,420.16/138,674.40 = 48,038.72/x
  3. Step 3: Cross multiply
    92,420.16x = 138,674.40 × 48,038.72
  4. Step 4: Simplify right side
    92,420.16x = 6,661,740,672.77
  5. Step 5: Solve for x
    x = 6,661,740,672.77/92,420.16
  6. Step 6: Final answer
    x = 72,081.03

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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.