Home / 72,438.03-99,964.08-40,606.25

Finding the Fourth Proportional to 72,438.03, 99,964.08 and 40,606.25

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Solution

The fourth proportional to 72,438.03, 99,964.08 and 40,606.25 is: 56,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,438.03 : 99,964.08 = 40,606.25 : x
  2. Step 2: Convert to fraction form
    72,438.03/99,964.08 = 40,606.25/x
  3. Step 3: Cross multiply
    72,438.03x = 99,964.08 × 40,606.25
  4. Step 4: Simplify right side
    72,438.03x = 4,059,166,450.82
  5. Step 5: Solve for x
    x = 4,059,166,450.82/72,438.03
  6. Step 6: Final answer
    x = 56,036.40

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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.