Home / 52,035.39-78,056.70-20,870.64

Finding the Fourth Proportional to 52,035.39, 78,056.70 and 20,870.64

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Solution

The fourth proportional to 52,035.39, 78,056.70 and 20,870.64 is: 31,307.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,035.39 : 78,056.70 = 20,870.64 : x
  2. Step 2: Convert to fraction form
    52,035.39/78,056.70 = 20,870.64/x
  3. Step 3: Cross multiply
    52,035.39x = 78,056.70 × 20,870.64
  4. Step 4: Simplify right side
    52,035.39x = 1,629,093,285.29
  5. Step 5: Solve for x
    x = 1,629,093,285.29/52,035.39
  6. Step 6: Final answer
    x = 31,307.41

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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.