Home / 56,124.81-77,459.67-39,118.05

Finding the Fourth Proportional to 56,124.81, 77,459.67 and 39,118.05

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Solution

The fourth proportional to 56,124.81, 77,459.67 and 39,118.05 is: 53,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,124.81 : 77,459.67 = 39,118.05 : x
  2. Step 2: Convert to fraction form
    56,124.81/77,459.67 = 39,118.05/x
  3. Step 3: Cross multiply
    56,124.81x = 77,459.67 × 39,118.05
  4. Step 4: Simplify right side
    56,124.81x = 3,030,071,244.04
  5. Step 5: Solve for x
    x = 3,030,071,244.04/56,124.81
  6. Step 6: Final answer
    x = 53,988.09

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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.