Home / 72,740.14-100,395.17-45,528.84

Finding the Fourth Proportional to 72,740.14, 100,395.17 and 45,528.84

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Solution

The fourth proportional to 72,740.14, 100,395.17 and 45,528.84 is: 62,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,740.14 : 100,395.17 = 45,528.84 : x
  2. Step 2: Convert to fraction form
    72,740.14/100,395.17 = 45,528.84/x
  3. Step 3: Cross multiply
    72,740.14x = 100,395.17 × 45,528.84
  4. Step 4: Simplify right side
    72,740.14x = 4,570,875,574.79
  5. Step 5: Solve for x
    x = 4,570,875,574.79/72,740.14
  6. Step 6: Final answer
    x = 62,838.42

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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.