Home / 90,361,031.12-124,699,002.36-49,107,932

Finding the Fourth Proportional to 90,361,031.12, 124,699,002.36 and 49,107,932

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Solution

The fourth proportional to 90,361,031.12, 124,699,002.36 and 49,107,932 is: 67,769,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,361,031.12 : 124,699,002.36 = 49,107,932 : x
  2. Step 2: Convert to fraction form
    90,361,031.12/124,699,002.36 = 49,107,932/x
  3. Step 3: Cross multiply
    90,361,031.12x = 124,699,002.36 × 49,107,932
  4. Step 4: Simplify right side
    90,361,031.12x = 6,123,710,128,362,719
  5. Step 5: Solve for x
    x = 6,123,710,128,362,719/90,361,031.12
  6. Step 6: Final answer
    x = 67,769,369.74

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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.