Home / 76,731.80-105,895.20-46,518.40

Finding the Fourth Proportional to 76,731.80, 105,895.20 and 46,518.40

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Solution

The fourth proportional to 76,731.80, 105,895.20 and 46,518.40 is: 64,198.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,731.80 : 105,895.20 = 46,518.40 : x
  2. Step 2: Convert to fraction form
    76,731.80/105,895.20 = 46,518.40/x
  3. Step 3: Cross multiply
    76,731.80x = 105,895.20 × 46,518.40
  4. Step 4: Simplify right side
    76,731.80x = 4,926,075,271.68
  5. Step 5: Solve for x
    x = 4,926,075,271.68/76,731.80
  6. Step 6: Final answer
    x = 64,198.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.