Home / 74,430.23-102,715.62-40,438.37

Finding the Fourth Proportional to 74,430.23, 102,715.62 and 40,438.37

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Solution

The fourth proportional to 74,430.23, 102,715.62 and 40,438.37 is: 55,805.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.23 : 102,715.62 = 40,438.37 : x
  2. Step 2: Convert to fraction form
    74,430.23/102,715.62 = 40,438.37/x
  3. Step 3: Cross multiply
    74,430.23x = 102,715.62 × 40,438.37
  4. Step 4: Simplify right side
    74,430.23x = 4,153,652,246.34
  5. Step 5: Solve for x
    x = 4,153,652,246.34/74,430.23
  6. Step 6: Final answer
    x = 55,805.98

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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.