Home / 55,838.16-77,058.12-30,688.32

Finding the Fourth Proportional to 55,838.16, 77,058.12 and 30,688.32

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Solution

The fourth proportional to 55,838.16, 77,058.12 and 30,688.32 is: 42,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,838.16 : 77,058.12 = 30,688.32 : x
  2. Step 2: Convert to fraction form
    55,838.16/77,058.12 = 30,688.32/x
  3. Step 3: Cross multiply
    55,838.16x = 77,058.12 × 30,688.32
  4. Step 4: Simplify right side
    55,838.16x = 2,364,784,245.16
  5. Step 5: Solve for x
    x = 2,364,784,245.16/55,838.16
  6. Step 6: Final answer
    x = 42,350.68

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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.