Home / 72,875.40-109,313.14-56,259.70

Finding the Fourth Proportional to 72,875.40, 109,313.14 and 56,259.70

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Solution

The fourth proportional to 72,875.40, 109,313.14 and 56,259.70 is: 84,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,875.40 : 109,313.14 = 56,259.70 : x
  2. Step 2: Convert to fraction form
    72,875.40/109,313.14 = 56,259.70/x
  3. Step 3: Cross multiply
    72,875.40x = 109,313.14 × 56,259.70
  4. Step 4: Simplify right side
    72,875.40x = 6,149,924,462.46
  5. Step 5: Solve for x
    x = 6,149,924,462.46/72,875.40
  6. Step 6: Final answer
    x = 84,389.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.