Home / 55,607.16-76,737.90-30,457.08

Finding the Fourth Proportional to 55,607.16, 76,737.90 and 30,457.08

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Solution

The fourth proportional to 55,607.16, 76,737.90 and 30,457.08 is: 42,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,607.16 : 76,737.90 = 30,457.08 : x
  2. Step 2: Convert to fraction form
    55,607.16/76,737.90 = 30,457.08/x
  3. Step 3: Cross multiply
    55,607.16x = 76,737.90 × 30,457.08
  4. Step 4: Simplify right side
    55,607.16x = 2,337,212,359.33
  5. Step 5: Solve for x
    x = 2,337,212,359.33/55,607.16
  6. Step 6: Final answer
    x = 42,030.78

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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.