Home / 72,437.54-99,964.58-40,605.75

Finding the Fourth Proportional to 72,437.54, 99,964.58 and 40,605.75

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Solution

The fourth proportional to 72,437.54, 99,964.58 and 40,605.75 is: 56,036.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,437.54 : 99,964.58 = 40,605.75 : x
  2. Step 2: Convert to fraction form
    72,437.54/99,964.58 = 40,605.75/x
  3. Step 3: Cross multiply
    72,437.54x = 99,964.58 × 40,605.75
  4. Step 4: Simplify right side
    72,437.54x = 4,059,136,541.31
  5. Step 5: Solve for x
    x = 4,059,136,541.31/72,437.54
  6. Step 6: Final answer
    x = 56,036.37

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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.