Home / 48,686.37-67,228.16-30,812.91

Finding the Fourth Proportional to 48,686.37, 67,228.16 and 30,812.91

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Solution

The fourth proportional to 48,686.37, 67,228.16 and 30,812.91 is: 42,547.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,686.37 : 67,228.16 = 30,812.91 : x
  2. Step 2: Convert to fraction form
    48,686.37/67,228.16 = 30,812.91/x
  3. Step 3: Cross multiply
    48,686.37x = 67,228.16 × 30,812.91
  4. Step 4: Simplify right side
    48,686.37x = 2,071,495,089.48
  5. Step 5: Solve for x
    x = 2,071,495,089.48/48,686.37
  6. Step 6: Final answer
    x = 42,547.74

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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.