Home / 52,099.26-78,148.88-12,656.10

Finding the Fourth Proportional to 52,099.26, 78,148.88 and 12,656.10

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Solution

The fourth proportional to 52,099.26, 78,148.88 and 12,656.10 is: 18,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,099.26 : 78,148.88 = 12,656.10 : x
  2. Step 2: Convert to fraction form
    52,099.26/78,148.88 = 12,656.10/x
  3. Step 3: Cross multiply
    52,099.26x = 78,148.88 × 12,656.10
  4. Step 4: Simplify right side
    52,099.26x = 989,060,040.17
  5. Step 5: Solve for x
    x = 989,060,040.17/52,099.26
  6. Step 6: Final answer
    x = 18,984.15

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1.5x scale

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.