Home / 76,455.08-105,509.42-42,466.71

Finding the Fourth Proportional to 76,455.08, 105,509.42 and 42,466.71

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Solution

The fourth proportional to 76,455.08, 105,509.42 and 42,466.71 is: 58,604.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,455.08 : 105,509.42 = 42,466.71 : x
  2. Step 2: Convert to fraction form
    76,455.08/105,509.42 = 42,466.71/x
  3. Step 3: Cross multiply
    76,455.08x = 105,509.42 × 42,466.71
  4. Step 4: Simplify right side
    76,455.08x = 4,480,637,729.07
  5. Step 5: Solve for x
    x = 4,480,637,729.07/76,455.08
  6. Step 6: Final answer
    x = 58,604.84

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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.