Home / 76,350.95-105,376.96-42,370.35

Finding the Fourth Proportional to 76,350.95, 105,376.96 and 42,370.35

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Solution

The fourth proportional to 76,350.95, 105,376.96 and 42,370.35 is: 58,478.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,350.95 : 105,376.96 = 42,370.35 : x
  2. Step 2: Convert to fraction form
    76,350.95/105,376.96 = 42,370.35/x
  3. Step 3: Cross multiply
    76,350.95x = 105,376.96 × 42,370.35
  4. Step 4: Simplify right side
    76,350.95x = 4,464,859,125.26
  5. Step 5: Solve for x
    x = 4,464,859,125.26/76,350.95
  6. Step 6: Final answer
    x = 58,478.11

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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.