Home / 72,020.79-99,397.67-41,799.60

Finding the Fourth Proportional to 72,020.79, 99,397.67 and 41,799.60

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Solution

The fourth proportional to 72,020.79, 99,397.67 and 41,799.60 is: 57,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,020.79 : 99,397.67 = 41,799.60 : x
  2. Step 2: Convert to fraction form
    72,020.79/99,397.67 = 41,799.60/x
  3. Step 3: Cross multiply
    72,020.79x = 99,397.67 × 41,799.60
  4. Step 4: Simplify right side
    72,020.79x = 4,154,782,637.93
  5. Step 5: Solve for x
    x = 4,154,782,637.93/72,020.79
  6. Step 6: Final answer
    x = 57,688.66

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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.