Home / 72,322.08-99,719.44-57,970.40

Finding the Fourth Proportional to 72,322.08, 99,719.44 and 57,970.40

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Solution

The fourth proportional to 72,322.08, 99,719.44 and 57,970.40 is: 79,931.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,322.08 : 99,719.44 = 57,970.40 : x
  2. Step 2: Convert to fraction form
    72,322.08/99,719.44 = 57,970.40/x
  3. Step 3: Cross multiply
    72,322.08x = 99,719.44 × 57,970.40
  4. Step 4: Simplify right side
    72,322.08x = 5,780,775,824.58
  5. Step 5: Solve for x
    x = 5,780,775,824.58/72,322.08
  6. Step 6: Final answer
    x = 79,931.00

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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.