Home / 55,130.70-82,501.65-38,412.30

Finding the Fourth Proportional to 55,130.70, 82,501.65 and 38,412.30

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Solution

The fourth proportional to 55,130.70, 82,501.65 and 38,412.30 is: 57,483.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,130.70 : 82,501.65 = 38,412.30 : x
  2. Step 2: Convert to fraction form
    55,130.70/82,501.65 = 38,412.30/x
  3. Step 3: Cross multiply
    55,130.70x = 82,501.65 × 38,412.30
  4. Step 4: Simplify right side
    55,130.70x = 3,169,078,130.30
  5. Step 5: Solve for x
    x = 3,169,078,130.30/55,130.70
  6. Step 6: Final answer
    x = 57,483.00

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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.