Home / 90,248.04-135,369.21-42,897.18

Finding the Fourth Proportional to 90,248.04, 135,369.21 and 42,897.18

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Solution

The fourth proportional to 90,248.04, 135,369.21 and 42,897.18 is: 64,344.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,248.04 : 135,369.21 = 42,897.18 : x
  2. Step 2: Convert to fraction form
    90,248.04/135,369.21 = 42,897.18/x
  3. Step 3: Cross multiply
    90,248.04x = 135,369.21 × 42,897.18
  4. Step 4: Simplify right side
    90,248.04x = 5,806,957,367.83
  5. Step 5: Solve for x
    x = 5,806,957,367.83/90,248.04
  6. Step 6: Final answer
    x = 64,344.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.