Home / 43,125.40-64,688.10-31,461.40

Finding the Fourth Proportional to 43,125.40, 64,688.10 and 31,461.40

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Solution

The fourth proportional to 43,125.40, 64,688.10 and 31,461.40 is: 47,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,125.40 : 64,688.10 = 31,461.40 : x
  2. Step 2: Convert to fraction form
    43,125.40/64,688.10 = 31,461.40/x
  3. Step 3: Cross multiply
    43,125.40x = 64,688.10 × 31,461.40
  4. Step 4: Simplify right side
    43,125.40x = 2,035,178,189.34
  5. Step 5: Solve for x
    x = 2,035,178,189.34/43,125.40
  6. Step 6: Final answer
    x = 47,192.10

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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.