Home / 76,465.04-105,520.20-42,931.04

Finding the Fourth Proportional to 76,465.04, 105,520.20 and 42,931.04

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Solution

The fourth proportional to 76,465.04, 105,520.20 and 42,931.04 is: 59,243.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,465.04 : 105,520.20 = 42,931.04 : x
  2. Step 2: Convert to fraction form
    76,465.04/105,520.20 = 42,931.04/x
  3. Step 3: Cross multiply
    76,465.04x = 105,520.20 × 42,931.04
  4. Step 4: Simplify right side
    76,465.04x = 4,530,091,927.01
  5. Step 5: Solve for x
    x = 4,530,091,927.01/76,465.04
  6. Step 6: Final answer
    x = 59,243.96

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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.