Home / 74,186.34-102,381.60-45,509.23

Finding the Fourth Proportional to 74,186.34, 102,381.60 and 45,509.23

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Solution

The fourth proportional to 74,186.34, 102,381.60 and 45,509.23 is: 62,805.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,186.34 : 102,381.60 = 45,509.23 : x
  2. Step 2: Convert to fraction form
    74,186.34/102,381.60 = 45,509.23/x
  3. Step 3: Cross multiply
    74,186.34x = 102,381.60 × 45,509.23
  4. Step 4: Simplify right side
    74,186.34x = 4,659,307,782.17
  5. Step 5: Solve for x
    x = 4,659,307,782.17/74,186.34
  6. Step 6: Final answer
    x = 62,805.47

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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.