Home / 88,534.71-122,071.50-72,342.18

Finding the Fourth Proportional to 88,534.71, 122,071.50 and 72,342.18

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Solution

The fourth proportional to 88,534.71, 122,071.50 and 72,342.18 is: 99,745.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,534.71 : 122,071.50 = 72,342.18 : x
  2. Step 2: Convert to fraction form
    88,534.71/122,071.50 = 72,342.18/x
  3. Step 3: Cross multiply
    88,534.71x = 122,071.50 × 72,342.18
  4. Step 4: Simplify right side
    88,534.71x = 8,830,918,425.87
  5. Step 5: Solve for x
    x = 8,830,918,425.87/88,534.71
  6. Step 6: Final answer
    x = 99,745.27

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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.