Home / 52,075.34-78,113.12-18,818.89

Finding the Fourth Proportional to 52,075.34, 78,113.12 and 18,818.89

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Solution

The fourth proportional to 52,075.34, 78,113.12 and 18,818.89 is: 28,228.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,075.34 : 78,113.12 = 18,818.89 : x
  2. Step 2: Convert to fraction form
    52,075.34/78,113.12 = 18,818.89/x
  3. Step 3: Cross multiply
    52,075.34x = 78,113.12 × 18,818.89
  4. Step 4: Simplify right side
    52,075.34x = 1,470,002,212.84
  5. Step 5: Solve for x
    x = 1,470,002,212.84/52,075.34
  6. Step 6: Final answer
    x = 28,228.38

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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.