Home / 91,903.12-126,838.08-56,085.52

Finding the Fourth Proportional to 91,903.12, 126,838.08 and 56,085.52

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Solution

The fourth proportional to 91,903.12, 126,838.08 and 56,085.52 is: 77,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,903.12 : 126,838.08 = 56,085.52 : x
  2. Step 2: Convert to fraction form
    91,903.12/126,838.08 = 56,085.52/x
  3. Step 3: Cross multiply
    91,903.12x = 126,838.08 × 56,085.52
  4. Step 4: Simplify right side
    91,903.12x = 7,113,779,672.60
  5. Step 5: Solve for x
    x = 7,113,779,672.60/91,903.12
  6. Step 6: Final answer
    x = 77,405.20

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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.