Home / 91,535.68-126,312.48-51,240.16

Finding the Fourth Proportional to 91,535.68, 126,312.48 and 51,240.16

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Solution

The fourth proportional to 91,535.68, 126,312.48 and 51,240.16 is: 70,707.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,535.68 : 126,312.48 = 51,240.16 : x
  2. Step 2: Convert to fraction form
    91,535.68/126,312.48 = 51,240.16/x
  3. Step 3: Cross multiply
    91,535.68x = 126,312.48 × 51,240.16
  4. Step 4: Simplify right side
    91,535.68x = 6,472,271,685.20
  5. Step 5: Solve for x
    x = 6,472,271,685.20/91,535.68
  6. Step 6: Final answer
    x = 70,707.64

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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.