Home / 76,240.18-105,209.85-42,248.35

Finding the Fourth Proportional to 76,240.18, 105,209.85 and 42,248.35

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Solution

The fourth proportional to 76,240.18, 105,209.85 and 42,248.35 is: 58,301.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,240.18 : 105,209.85 = 42,248.35 : x
  2. Step 2: Convert to fraction form
    76,240.18/105,209.85 = 42,248.35/x
  3. Step 3: Cross multiply
    76,240.18x = 105,209.85 × 42,248.35
  4. Step 4: Simplify right side
    76,240.18x = 4,444,942,566.25
  5. Step 5: Solve for x
    x = 4,444,942,566.25/76,240.18
  6. Step 6: Final answer
    x = 58,301.84

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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.