Home / 63,913.38-88,359.90-47,970.15

Finding the Fourth Proportional to 63,913.38, 88,359.90 and 47,970.15

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Solution

The fourth proportional to 63,913.38, 88,359.90 and 47,970.15 is: 66,318.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,913.38 : 88,359.90 = 47,970.15 : x
  2. Step 2: Convert to fraction form
    63,913.38/88,359.90 = 47,970.15/x
  3. Step 3: Cross multiply
    63,913.38x = 88,359.90 × 47,970.15
  4. Step 4: Simplify right side
    63,913.38x = 4,238,637,656.99
  5. Step 5: Solve for x
    x = 4,238,637,656.99/63,913.38
  6. Step 6: Final answer
    x = 66,318.47

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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.