Home / 54,688.02-82,038.86-21,403.78

Finding the Fourth Proportional to 54,688.02, 82,038.86 and 21,403.78

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Solution

The fourth proportional to 54,688.02, 82,038.86 and 21,403.78 is: 32,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,688.02 : 82,038.86 = 21,403.78 : x
  2. Step 2: Convert to fraction form
    54,688.02/82,038.86 = 21,403.78/x
  3. Step 3: Cross multiply
    54,688.02x = 82,038.86 × 21,403.78
  4. Step 4: Simplify right side
    54,688.02x = 1,755,941,710.89
  5. Step 5: Solve for x
    x = 1,755,941,710.89/54,688.02
  6. Step 6: Final answer
    x = 32,108.34

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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.