Home / 76,144.58-105,089.31-45,946.20

Finding the Fourth Proportional to 76,144.58, 105,089.31 and 45,946.20

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Solution

The fourth proportional to 76,144.58, 105,089.31 and 45,946.20 is: 63,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,144.58 : 105,089.31 = 45,946.20 : x
  2. Step 2: Convert to fraction form
    76,144.58/105,089.31 = 45,946.20/x
  3. Step 3: Cross multiply
    76,144.58x = 105,089.31 × 45,946.20
  4. Step 4: Simplify right side
    76,144.58x = 4,828,454,455.12
  5. Step 5: Solve for x
    x = 4,828,454,455.12/76,144.58
  6. Step 6: Final answer
    x = 63,411.67

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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.