Home / 76,470.04-105,525.07-42,480.69

Finding the Fourth Proportional to 76,470.04, 105,525.07 and 42,480.69

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Solution

The fourth proportional to 76,470.04, 105,525.07 and 42,480.69 is: 58,621.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,470.04 : 105,525.07 = 42,480.69 : x
  2. Step 2: Convert to fraction form
    76,470.04/105,525.07 = 42,480.69/x
  3. Step 3: Cross multiply
    76,470.04x = 105,525.07 × 42,480.69
  4. Step 4: Simplify right side
    76,470.04x = 4,482,777,785.90
  5. Step 5: Solve for x
    x = 4,482,777,785.90/76,470.04
  6. Step 6: Final answer
    x = 58,621.36

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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.