Home / 72,603.04-108,853.36-28,192.80

Finding the Fourth Proportional to 72,603.04, 108,853.36 and 28,192.80

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Solution

The fourth proportional to 72,603.04, 108,853.36 and 28,192.80 is: 42,269.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,603.04 : 108,853.36 = 28,192.80 : x
  2. Step 2: Convert to fraction form
    72,603.04/108,853.36 = 28,192.80/x
  3. Step 3: Cross multiply
    72,603.04x = 108,853.36 × 28,192.80
  4. Step 4: Simplify right side
    72,603.04x = 3,068,881,007.81
  5. Step 5: Solve for x
    x = 3,068,881,007.81/72,603.04
  6. Step 6: Final answer
    x = 42,269.32

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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.