Home / 52,275.24-78,411.42-21,109.32

Finding the Fourth Proportional to 52,275.24, 78,411.42 and 21,109.32

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Solution

The fourth proportional to 52,275.24, 78,411.42 and 21,109.32 is: 31,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,275.24 : 78,411.42 = 21,109.32 : x
  2. Step 2: Convert to fraction form
    52,275.24/78,411.42 = 21,109.32/x
  3. Step 3: Cross multiply
    52,275.24x = 78,411.42 × 21,109.32
  4. Step 4: Simplify right side
    52,275.24x = 1,655,211,756.43
  5. Step 5: Solve for x
    x = 1,655,211,756.43/52,275.24
  6. Step 6: Final answer
    x = 31,663.40

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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.