Home / 86,931.32-119,937.18-48,685.16

Finding the Fourth Proportional to 86,931.32, 119,937.18 and 48,685.16

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Solution

The fourth proportional to 86,931.32, 119,937.18 and 48,685.16 is: 67,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,931.32 : 119,937.18 = 48,685.16 : x
  2. Step 2: Convert to fraction form
    86,931.32/119,937.18 = 48,685.16/x
  3. Step 3: Cross multiply
    86,931.32x = 119,937.18 × 48,685.16
  4. Step 4: Simplify right side
    86,931.32x = 5,839,160,798.25
  5. Step 5: Solve for x
    x = 5,839,160,798.25/86,931.32
  6. Step 6: Final answer
    x = 67,169.82

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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.