Home / 45,411.60-68,117.40-40,803.60

Finding the Fourth Proportional to 45,411.60, 68,117.40 and 40,803.60

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Solution

The fourth proportional to 45,411.60, 68,117.40 and 40,803.60 is: 61,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,411.60 : 68,117.40 = 40,803.60 : x
  2. Step 2: Convert to fraction form
    45,411.60/68,117.40 = 40,803.60/x
  3. Step 3: Cross multiply
    45,411.60x = 68,117.40 × 40,803.60
  4. Step 4: Simplify right side
    45,411.60x = 2,779,435,142.64
  5. Step 5: Solve for x
    x = 2,779,435,142.64/45,411.60
  6. Step 6: Final answer
    x = 61,205.40

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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.