Home / 74,525.18-102,859.36-42,715.40

Finding the Fourth Proportional to 74,525.18, 102,859.36 and 42,715.40

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Solution

The fourth proportional to 74,525.18, 102,859.36 and 42,715.40 is: 58,955.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,525.18 : 102,859.36 = 42,715.40 : x
  2. Step 2: Convert to fraction form
    74,525.18/102,859.36 = 42,715.40/x
  3. Step 3: Cross multiply
    74,525.18x = 102,859.36 × 42,715.40
  4. Step 4: Simplify right side
    74,525.18x = 4,393,678,706.14
  5. Step 5: Solve for x
    x = 4,393,678,706.14/74,525.18
  6. Step 6: Final answer
    x = 58,955.63

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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.