Home / 66,630.07-91,946.73-39,423.79

Finding the Fourth Proportional to 66,630.07, 91,946.73 and 39,423.79

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Solution

The fourth proportional to 66,630.07, 91,946.73 and 39,423.79 is: 54,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,630.07 : 91,946.73 = 39,423.79 : x
  2. Step 2: Convert to fraction form
    66,630.07/91,946.73 = 39,423.79/x
  3. Step 3: Cross multiply
    66,630.07x = 91,946.73 × 39,423.79
  4. Step 4: Simplify right side
    66,630.07x = 3,624,888,574.71
  5. Step 5: Solve for x
    x = 3,624,888,574.71/66,630.07
  6. Step 6: Final answer
    x = 54,403.19

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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.