Home / 52,535.40-78,803.10-21,354.60

Finding the Fourth Proportional to 52,535.40, 78,803.10 and 21,354.60

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Solution

The fourth proportional to 52,535.40, 78,803.10 and 21,354.60 is: 32,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,535.40 : 78,803.10 = 21,354.60 : x
  2. Step 2: Convert to fraction form
    52,535.40/78,803.10 = 21,354.60/x
  3. Step 3: Cross multiply
    52,535.40x = 78,803.10 × 21,354.60
  4. Step 4: Simplify right side
    52,535.40x = 1,682,808,679.26
  5. Step 5: Solve for x
    x = 1,682,808,679.26/52,535.40
  6. Step 6: Final answer
    x = 32,031.90

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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.