Home / 77,703.10-116,337.63-42,036.88

Finding the Fourth Proportional to 77,703.10, 116,337.63 and 42,036.88

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Solution

The fourth proportional to 77,703.10, 116,337.63 and 42,036.88 is: 62,937.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,703.10 : 116,337.63 = 42,036.88 : x
  2. Step 2: Convert to fraction form
    77,703.10/116,337.63 = 42,036.88/x
  3. Step 3: Cross multiply
    77,703.10x = 116,337.63 × 42,036.88
  4. Step 4: Simplify right side
    77,703.10x = 4,890,470,991.79
  5. Step 5: Solve for x
    x = 4,890,470,991.79/77,703.10
  6. Step 6: Final answer
    x = 62,937.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.