Home / 53,990.34-74,403.54-38,856.30

Finding the Fourth Proportional to 53,990.34, 74,403.54 and 38,856.30

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Solution

The fourth proportional to 53,990.34, 74,403.54 and 38,856.30 is: 53,547.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,990.34 : 74,403.54 = 38,856.30 : x
  2. Step 2: Convert to fraction form
    53,990.34/74,403.54 = 38,856.30/x
  3. Step 3: Cross multiply
    53,990.34x = 74,403.54 × 38,856.30
  4. Step 4: Simplify right side
    53,990.34x = 2,891,046,271.30
  5. Step 5: Solve for x
    x = 2,891,046,271.30/53,990.34
  6. Step 6: Final answer
    x = 53,547.47

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1.5x scale

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.