Home / 75,403.16-113,130.60-47,289.26

Finding the Fourth Proportional to 75,403.16, 113,130.60 and 47,289.26

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Solution

The fourth proportional to 75,403.16, 113,130.60 and 47,289.26 is: 70,950.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,403.16 : 113,130.60 = 47,289.26 : x
  2. Step 2: Convert to fraction form
    75,403.16/113,130.60 = 47,289.26/x
  3. Step 3: Cross multiply
    75,403.16x = 113,130.60 × 47,289.26
  4. Step 4: Simplify right side
    75,403.16x = 5,349,862,357.36
  5. Step 5: Solve for x
    x = 5,349,862,357.36/75,403.16
  6. Step 6: Final answer
    x = 70,950.11

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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.