Home / 51,538.32-77,658.48-42,383.40

Finding the Fourth Proportional to 51,538.32, 77,658.48 and 42,383.40

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Solution

The fourth proportional to 51,538.32, 77,658.48 and 42,383.40 is: 63,863.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,538.32 : 77,658.48 = 42,383.40 : x
  2. Step 2: Convert to fraction form
    51,538.32/77,658.48 = 42,383.40/x
  3. Step 3: Cross multiply
    51,538.32x = 77,658.48 × 42,383.40
  4. Step 4: Simplify right side
    51,538.32x = 3,291,430,421.23
  5. Step 5: Solve for x
    x = 3,291,430,421.23/51,538.32
  6. Step 6: Final answer
    x = 63,863.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.