Home / 72,101.04-99,543.27-49,477.20

Finding the Fourth Proportional to 72,101.04, 99,543.27 and 49,477.20

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Solution

The fourth proportional to 72,101.04, 99,543.27 and 49,477.20 is: 68,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,101.04 : 99,543.27 = 49,477.20 : x
  2. Step 2: Convert to fraction form
    72,101.04/99,543.27 = 49,477.20/x
  3. Step 3: Cross multiply
    72,101.04x = 99,543.27 × 49,477.20
  4. Step 4: Simplify right side
    72,101.04x = 4,925,122,278.44
  5. Step 5: Solve for x
    x = 4,925,122,278.44/72,101.04
  6. Step 6: Final answer
    x = 68,308.62

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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.