Home / 71,700.19-98,944.95-39,868.81

Finding the Fourth Proportional to 71,700.19, 98,944.95 and 39,868.81

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Solution

The fourth proportional to 71,700.19, 98,944.95 and 39,868.81 is: 55,018.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,700.19 : 98,944.95 = 39,868.81 : x
  2. Step 2: Convert to fraction form
    71,700.19/98,944.95 = 39,868.81/x
  3. Step 3: Cross multiply
    71,700.19x = 98,944.95 × 39,868.81
  4. Step 4: Simplify right side
    71,700.19x = 3,944,817,412.01
  5. Step 5: Solve for x
    x = 3,944,817,412.01/71,700.19
  6. Step 6: Final answer
    x = 55,018.23

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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.