Home / 65,875.12-98,782.78-28,417.48

Finding the Fourth Proportional to 65,875.12, 98,782.78 and 28,417.48

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Solution

The fourth proportional to 65,875.12, 98,782.78 and 28,417.48 is: 42,613.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,875.12 : 98,782.78 = 28,417.48 : x
  2. Step 2: Convert to fraction form
    65,875.12/98,782.78 = 28,417.48/x
  3. Step 3: Cross multiply
    65,875.12x = 98,782.78 × 28,417.48
  4. Step 4: Simplify right side
    65,875.12x = 2,807,157,674.99
  5. Step 5: Solve for x
    x = 2,807,157,674.99/65,875.12
  6. Step 6: Final answer
    x = 42,613.32

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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.