Home / 72,490.13-100,036.55-42,296.21

Finding the Fourth Proportional to 72,490.13, 100,036.55 and 42,296.21

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Solution

The fourth proportional to 72,490.13, 100,036.55 and 42,296.21 is: 58,368.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,490.13 : 100,036.55 = 42,296.21 : x
  2. Step 2: Convert to fraction form
    72,490.13/100,036.55 = 42,296.21/x
  3. Step 3: Cross multiply
    72,490.13x = 100,036.55 × 42,296.21
  4. Step 4: Simplify right side
    72,490.13x = 4,231,166,532.03
  5. Step 5: Solve for x
    x = 4,231,166,532.03/72,490.13
  6. Step 6: Final answer
    x = 58,368.87

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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.