Home / 48,688.68-67,148.32-31,686.80

Finding the Fourth Proportional to 48,688.68, 67,148.32 and 31,686.80

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Solution

The fourth proportional to 48,688.68, 67,148.32 and 31,686.80 is: 43,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,688.68 : 67,148.32 = 31,686.80 : x
  2. Step 2: Convert to fraction form
    48,688.68/67,148.32 = 31,686.80/x
  3. Step 3: Cross multiply
    48,688.68x = 67,148.32 × 31,686.80
  4. Step 4: Simplify right side
    48,688.68x = 2,127,715,386.18
  5. Step 5: Solve for x
    x = 2,127,715,386.18/48,688.68
  6. Step 6: Final answer
    x = 43,700.41

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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.