Home / 76,329.07-105,386.07-47,659.93

Finding the Fourth Proportional to 76,329.07, 105,386.07 and 47,659.93

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Solution

The fourth proportional to 76,329.07, 105,386.07 and 47,659.93 is: 65,803.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,329.07 : 105,386.07 = 47,659.93 : x
  2. Step 2: Convert to fraction form
    76,329.07/105,386.07 = 47,659.93/x
  3. Step 3: Cross multiply
    76,329.07x = 105,386.07 × 47,659.93
  4. Step 4: Simplify right side
    76,329.07x = 5,022,692,719.18
  5. Step 5: Solve for x
    x = 5,022,692,719.18/76,329.07
  6. Step 6: Final answer
    x = 65,803.14

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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.