Home / 52,210.34-78,315.50-12,766.98

Finding the Fourth Proportional to 52,210.34, 78,315.50 and 12,766.98

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Solution

The fourth proportional to 52,210.34, 78,315.50 and 12,766.98 is: 19,150.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,210.34 : 78,315.50 = 12,766.98 : x
  2. Step 2: Convert to fraction form
    52,210.34/78,315.50 = 12,766.98/x
  3. Step 3: Cross multiply
    52,210.34x = 78,315.50 × 12,766.98
  4. Step 4: Simplify right side
    52,210.34x = 999,852,454.11
  5. Step 5: Solve for x
    x = 999,852,454.11/52,210.34
  6. Step 6: Final answer
    x = 19,150.47

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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.