Home / 42,762.24-64,150.32-13,180.08

Finding the Fourth Proportional to 42,762.24, 64,150.32 and 13,180.08

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Solution

The fourth proportional to 42,762.24, 64,150.32 and 13,180.08 is: 19,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,762.24 : 64,150.32 = 13,180.08 : x
  2. Step 2: Convert to fraction form
    42,762.24/64,150.32 = 13,180.08/x
  3. Step 3: Cross multiply
    42,762.24x = 64,150.32 × 13,180.08
  4. Step 4: Simplify right side
    42,762.24x = 845,506,349.63
  5. Step 5: Solve for x
    x = 845,506,349.63/42,762.24
  6. Step 6: Final answer
    x = 19,772.27

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1.5x scale

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.