Home / 52,205.07-78,307.61-12,762.12

Finding the Fourth Proportional to 52,205.07, 78,307.61 and 12,762.12

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Solution

The fourth proportional to 52,205.07, 78,307.61 and 12,762.12 is: 19,143.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,205.07 : 78,307.61 = 12,762.12 : x
  2. Step 2: Convert to fraction form
    52,205.07/78,307.61 = 12,762.12/x
  3. Step 3: Cross multiply
    52,205.07x = 78,307.61 × 12,762.12
  4. Step 4: Simplify right side
    52,205.07x = 999,371,051.92
  5. Step 5: Solve for x
    x = 999,371,051.92/52,205.07
  6. Step 6: Final answer
    x = 19,143.18

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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.