Home / 72,031.07-99,397.41-41,811.51

Finding the Fourth Proportional to 72,031.07, 99,397.41 and 41,811.51

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Solution

The fourth proportional to 72,031.07, 99,397.41 and 41,811.51 is: 57,696.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,031.07 : 99,397.41 = 41,811.51 : x
  2. Step 2: Convert to fraction form
    72,031.07/99,397.41 = 41,811.51/x
  3. Step 3: Cross multiply
    72,031.07x = 99,397.41 × 41,811.51
  4. Step 4: Simplify right side
    72,031.07x = 4,155,955,802.19
  5. Step 5: Solve for x
    x = 4,155,955,802.19/72,031.07
  6. Step 6: Final answer
    x = 57,696.71

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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.