Home / 91,050.57-125,708.63-63,777.74

Finding the Fourth Proportional to 91,050.57, 125,708.63 and 63,777.74

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Solution

The fourth proportional to 91,050.57, 125,708.63 and 63,777.74 is: 88,054.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,050.57 : 125,708.63 = 63,777.74 : x
  2. Step 2: Convert to fraction form
    91,050.57/125,708.63 = 63,777.74/x
  3. Step 3: Cross multiply
    91,050.57x = 125,708.63 × 63,777.74
  4. Step 4: Simplify right side
    91,050.57x = 8,017,411,372.46
  5. Step 5: Solve for x
    x = 8,017,411,372.46/91,050.57
  6. Step 6: Final answer
    x = 88,054.49

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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.