Home / 74,285.19-102,513.87-42,455.16

Finding the Fourth Proportional to 74,285.19, 102,513.87 and 42,455.16

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Solution

The fourth proportional to 74,285.19, 102,513.87 and 42,455.16 is: 58,588.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,285.19 : 102,513.87 = 42,455.16 : x
  2. Step 2: Convert to fraction form
    74,285.19/102,513.87 = 42,455.16/x
  3. Step 3: Cross multiply
    74,285.19x = 102,513.87 × 42,455.16
  4. Step 4: Simplify right side
    74,285.19x = 4,352,242,753.07
  5. Step 5: Solve for x
    x = 4,352,242,753.07/74,285.19
  6. Step 6: Final answer
    x = 58,588.30

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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.