Home / 61,430.32-84,780.72-34,579.36

Finding the Fourth Proportional to 61,430.32, 84,780.72 and 34,579.36

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Solution

The fourth proportional to 61,430.32, 84,780.72 and 34,579.36 is: 47,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,430.32 : 84,780.72 = 34,579.36 : x
  2. Step 2: Convert to fraction form
    61,430.32/84,780.72 = 34,579.36/x
  3. Step 3: Cross multiply
    61,430.32x = 84,780.72 × 34,579.36
  4. Step 4: Simplify right side
    61,430.32x = 2,931,663,037.94
  5. Step 5: Solve for x
    x = 2,931,663,037.94/61,430.32
  6. Step 6: Final answer
    x = 47,723.39

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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.