Home / 55,130.86-76,123.44-42,363.91

Finding the Fourth Proportional to 55,130.86, 76,123.44 and 42,363.91

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Solution

The fourth proportional to 55,130.86, 76,123.44 and 42,363.91 is: 58,495.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,130.86 : 76,123.44 = 42,363.91 : x
  2. Step 2: Convert to fraction form
    55,130.86/76,123.44 = 42,363.91/x
  3. Step 3: Cross multiply
    55,130.86x = 76,123.44 × 42,363.91
  4. Step 4: Simplify right side
    55,130.86x = 3,224,886,561.05
  5. Step 5: Solve for x
    x = 3,224,886,561.05/55,130.86
  6. Step 6: Final answer
    x = 58,495.13

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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.