Home / 76,329.45-105,330.92-42,334.93

Finding the Fourth Proportional to 76,329.45, 105,330.92 and 42,334.93

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Solution

The fourth proportional to 76,329.45, 105,330.92 and 42,334.93 is: 58,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,329.45 : 105,330.92 = 42,334.93 : x
  2. Step 2: Convert to fraction form
    76,329.45/105,330.92 = 42,334.93/x
  3. Step 3: Cross multiply
    76,329.45x = 105,330.92 × 42,334.93
  4. Step 4: Simplify right side
    76,329.45x = 4,459,176,386.71
  5. Step 5: Solve for x
    x = 4,459,176,386.71/76,329.45
  6. Step 6: Final answer
    x = 58,420.13

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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.