Home / 76,358.16-105,436.17-47,711.19

Finding the Fourth Proportional to 76,358.16, 105,436.17 and 47,711.19

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Solution

The fourth proportional to 76,358.16, 105,436.17 and 47,711.19 is: 65,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,358.16 : 105,436.17 = 47,711.19 : x
  2. Step 2: Convert to fraction form
    76,358.16/105,436.17 = 47,711.19/x
  3. Step 3: Cross multiply
    76,358.16x = 105,436.17 × 47,711.19
  4. Step 4: Simplify right side
    76,358.16x = 5,030,484,901.19
  5. Step 5: Solve for x
    x = 5,030,484,901.19/76,358.16
  6. Step 6: Final answer
    x = 65,880.13

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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.