Home / 90,475.47-124,592.99-84,699.18

Finding the Fourth Proportional to 90,475.47, 124,592.99 and 84,699.18

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Solution

The fourth proportional to 90,475.47, 124,592.99 and 84,699.18 is: 116,638.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,475.47 : 124,592.99 = 84,699.18 : x
  2. Step 2: Convert to fraction form
    90,475.47/124,592.99 = 84,699.18/x
  3. Step 3: Cross multiply
    90,475.47x = 124,592.99 × 84,699.18
  4. Step 4: Simplify right side
    90,475.47x = 10,552,923,663.25
  5. Step 5: Solve for x
    x = 10,552,923,663.25/90,475.47
  6. Step 6: Final answer
    x = 116,638.51

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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.