Home / 63,285.48-87,330.75-34,985.70

Finding the Fourth Proportional to 63,285.48, 87,330.75 and 34,985.70

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Solution

The fourth proportional to 63,285.48, 87,330.75 and 34,985.70 is: 48,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,285.48 : 87,330.75 = 34,985.70 : x
  2. Step 2: Convert to fraction form
    63,285.48/87,330.75 = 34,985.70/x
  3. Step 3: Cross multiply
    63,285.48x = 87,330.75 × 34,985.70
  4. Step 4: Simplify right side
    63,285.48x = 3,055,327,420.28
  5. Step 5: Solve for x
    x = 3,055,327,420.28/63,285.48
  6. Step 6: Final answer
    x = 48,278.49

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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.