Home / 72,851.22-100,531.95-40,585.08

Finding the Fourth Proportional to 72,851.22, 100,531.95 and 40,585.08

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Solution

The fourth proportional to 72,851.22, 100,531.95 and 40,585.08 is: 56,005.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,851.22 : 100,531.95 = 40,585.08 : x
  2. Step 2: Convert to fraction form
    72,851.22/100,531.95 = 40,585.08/x
  3. Step 3: Cross multiply
    72,851.22x = 100,531.95 × 40,585.08
  4. Step 4: Simplify right side
    72,851.22x = 4,080,097,233.31
  5. Step 5: Solve for x
    x = 4,080,097,233.31/72,851.22
  6. Step 6: Final answer
    x = 56,005.89

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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.